Ahnentafel - AbsoluteAstronomy.com

An ahnentafel or ahnenreihe (ancestor series; ˈʔaːnənˌʁaɪə) is a genealogical numbering system for listing a person's direct ancestors in a fixed sequence of ascent. The subject (proband

Proband

Proband, or propositus, is a term used most often in medical genetics and other medical fields to denote a particular subject being studied or reported on. On pedigrees, the proband is noted with an arrow and the box or circle shaded accordingly...

) of the ahnentafel is listed as #1, the subject's father as #2 and the mother as #3, the paternal grandparents as #4 and #5 and the maternal grandparents as #6 and #7, and so on, back through the generations. Apart from #1, who can be male or female, all even-numbered persons are male, and all odd-numbered persons are female. In this schema

Conceptual model

In the most general sense, a model is anything used in any way to represent anything else. Some models are physical objects, for instance, a toy model which may be assembled, and may even be made to work like the object it represents. They are used to help us know and understand the subject matter...

, the number of any person's father is double the person's number, and a person's mother is double the person's number plus one. Using this knowledge of numeration, one can derive some basic information about individuals who are listed without additional research.

This construct displays a person's genealogy

Genealogy

Genealogy is the study of families and the tracing of their lineages and history. Genealogists use oral traditions, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members...

compactly, without the need for a diagram such as a family tree

Family tree

A family tree, or pedigree chart, is a chart representing family relationships in a conventional tree structure. The more detailed family trees used in medicine, genealogy, and social work are known as genograms.-Family tree representations:...

. It is particularly useful in situations where one may be restricted to presenting a genealogy

Genealogy

in plain text, for example, in e-mail

E-mail

Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

s or newsgroup

Newsgroup

A usenet newsgroup is a repository usually within the Usenet system, for messages posted from many users in different locations. The term may be confusing to some, because it is usually a discussion group. Newsgroups are technically distinct from, but functionally similar to, discussion forums on...

articles. In effect, an ahnentafel is a method for storing a binary tree in an array by listing the node

Node (computer science)

A node is a record consisting of one or more fields that are links to other nodes, and a data field. The link and data fields are often implemented by pointers or references although it is also quite common for the data to be embedded directly in the node. Nodes are used to build linked, often...

s (individuals) in level-order

Tree traversal

In computer science, tree-traversal refers to the process of visiting each node in a tree data structure, exactly once, in a systematic way. Such traversals are classified by the order in which the nodes are visited...

(in generation order).

The ahnentafel system of numeration is also known as: the Eytzinger Method, for Michaël Eytzinger

Michael Eytzinger

Michaël Eytzinger , was an Austrian nobleman, diplomat, historian, and publicist, who first published the principles of a genealogical numbering system of ancestors.The first Ahnentafel was published in 1590 by Michaël Eytzinger in his Thesaurus principum hac aetate in Europa...

, the Austrian-born historian who first published the principles of the system in 1590; the Sosa Method, named for Jerónimo (Jerome) de Sosa

Jeronimo de Sosa

Jerónimo de Sosa also known as Hieronymus, Jerome or Geronimo de Sosa, was a 17th century Spanish Franciscan friar and a genealogist who developed a genealogical numbering system of ancestors....

, the Spanish genealogist who popularized the numbering system in his work Noticia de la gran casa de los marqueses de Villafranca in 1676; and the Sosa–Stradonitz Method, for Stephan Kekulé von Stradonitz

Stephan Kekulé von Stradonitz

Stephan Kekulé von Stradonitz , was a German lawyer, heraldist and genealogist who popularized a genealogical numbering system of ancestors....

, the genealogist and son of Friedrich August Kekulé

Friedrich August Kekulé von Stradonitz

Friedrich August Kekule von Stradonitz was a German organic chemist. From the 1850s until his death, Kekule was one of the most prominent chemists in Europe, especially in theoretical chemistry...

, who published his interpretation of Sosa's method in his Ahnentafel-atlas in 1898.

"Ahnentafel" is a loan word from the German language, and its German equivalents are Ahnenreihe and Ahnenliste. In German, Ahnentafel can also mean a pedigree chart

Pedigree chart

A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses....

. An ahnentafel list is sometimes called a "Kekulé" after Stephan Kekulé von Stradonitz.

Inductive reckoning

To find out what someone's number would be without compiling a list, one must first trace how they relate back to the subject or person of interest, meaning one records that someone is the subject's father's mother's mother's father's father's... Once one has done that, one can use two methods.

First method

Use the knowledge that a father's number will be twice that individual's number, or a mother's will be twice plus one, and just multiply and add 1 accordingly. For instance, someone can find out what number Electress Sophia of Hanover

Sophia of Hanover

Sophia of the Palatinate was an heiress to the crowns of England and Ireland and later the crown of Great Britain. She was declared heiress presumptive by the Act of Settlement 1701...

would be on an ahnentafel of Peter Mark Andrew Phillips

Peter Mark Andrew Phillips

Peter Mark Andrew Phillips is the only son of Princess Anne, The Princess Royal and her first husband, Captain Mark Phillips. He is the eldest grandchild of Queen Elizabeth II and Prince Philip, Duke of Edinburgh....

. Sophia is Peter's mother's mother's father's father's father's mother's father's father's father's father's father's mother. So, we multiply and add:

1×2 + 1 = 3

3×2 + 1 = 7

7×2 = 14

14×2 = 28

28×2 = 56

56×2 + 1 = 113

113×2 = 226

226×2 = 452

452×2 = 904

904×2 = 1808

1808×2 = 3616

3616×2 + 1 = 7233

Thus, if we were to make an ahnentafel for Peter Phillips, Electress Sophia would be #7233.

Second method

This is an elegant and concise way to visualize the genealogical chain between the subject and the ancestor.

1. Write down the digit "1", which represents the subject, and, writing from left to right, write "0" for each "father" and "1" for each "mother" in the relation, ending with the ancestor of interest. The result will be the binary

Binary numeral system

The binary numeral system, or base-2 number system, represents numeric values using two symbols, 0 and 1. More specifically, the usual base-2 system is a positional notation with a radix of 2...

representation of the ancestor's ahnentafel number. Using the Sophia example, there is a translation of the chain of relations into a chain of digits.

Sophia = Peter's mother's mother's father's father's father's mother's father's father's father's father's father's mother

Sophia = 1110001000001

2. If needed, convert the ahnentafel number from its binary to its decimal form. A conversion tool might prove handy.

Sophia = 1110001000001

Sophia = 7233

Reverse first method

One starts out by seeing if the number is odd or even.
If it is odd, the last part of the relation is "mother," so subtract 1 and divide by 2.
If it is even, the last part is "father," and one divides by 2.
Repeat steps 2–3, and build back from the last word.
Once one gets to 1, one is done.

On an ahnentafel of HRH The Duke of Cambridge, Mr John Wark is number 116. We follow the steps:

{| {| class="wikitable"
|-
| align="center" | 116/2 = 58
| align="center" | 58/2 = 29
| align="center" | 29 − 1 = 28 and 28/2 = 14
| align="center" | 14/2 = 7
| align="center" | 7 − 1 = 6 and 6/2 = 3
| align="center" | 3 − 1 = 2 and 2/2 = 1
|-
| align="center" | father
| align="center" | father
| align="center" | mother
| align="center" | father
| align="center" | mother
| align="center" | mother
|}

We reverse that, and we get that #116, Mr John Wark, is Prince William's mother's mother's father's mother's father's father.

Reverse second method

1. Convert the ahnentafel number from decimal to binary.

Mr John Wark = 116

Mr John Wark = 1110100

2. Replace the leftmost "1" with the subject's name and replace each following "0" and "1" with "father" and "mother" respectively.

Mr John Wark = 1110100

Mr John Wark = Prince William's mother's mother's father's mother's father's father

{| class="wikitable"
|+Demonstration
! decimal !! binary !! relation
|-
| align="right" | 1
| align="left" | 1
| align="left" | proband

Proband

|-
| align="right" | 2
| align="left" | 10
| align="left" | father
|-
| align="right" | 3
| align="left" | 11
| align="left" | mother
|-
| align="right" | 4
| align="left" | 100
| align="left" | paternal grandfather
|-
| align="right" | 5
| align="left" | 101
| align="left" | paternal grandmother
|-
| align="right" | 6
| align="left" | 110
| align="left" | maternal grandfather
|-
| align="right" | 7
| align="left" | 111
| align="left" | maternal grandmother
|-
| align="right" | 8
| align="left" | 1000
| align="left" | father's father's father
|-
| align="right" | 9
| align="left" | 1001
| align="left" | father's father's mother
|-
| align="right" | 10
| align="left" | 1010
| align="left" | father's mother's father
|-
| align="right" | 11
| align="left" | 1011
| align="left" | father's mother's mother
|-
| align="right" | 12
| align="left" | 1100
| align="left" | mother's father's father
|-
| align="right" | 13
| align="left" | 1101
| align="left" | mother's father's mother
|-
| align="right" | 14
| align="left" | 1110
| align="left" | mother's mother's father
|-
| align="right" | 15
| align="left" | 1111
| align="left" | mother's mother's mother
|-
|}

Calculation of the generation number

The number of the generation can be calculated from any Kekulé number with the logarithm base 2. It is assumed that generation zero (0) represents the initial person (Kekulé number 1).



  log2()

  -> The result needs to be rounded down to a full integer (truncate decimal digits)

  = generation number

Example

The example, shown below, is an ahnentafel of HRH The Duke of Cambridge listing all of his ancestors up to his fourth great-grandparents.

HRH The Duke of Cambridge (born 21 June 1982)
HRH The Prince of Wales
Charles, Prince of Wales
Prince Charles, Prince of Wales is the heir apparent and eldest son of Queen Elizabeth II and Prince Philip, Duke of Edinburgh. Since 1958 his major title has been His Royal Highness The Prince of Wales. In Scotland he is additionally known as The Duke of Rothesay...

(born 14 November 1948)
Diana, Princess of Wales
Diana, Princess of Wales
Diana, Princess of Wales was the first wife of Charles, Prince of Wales, whom she married on 29 July 1981, and an international charity and fundraising figure, as well as a preeminent celebrity of the late 20th century...

(1 July 1961 – 31 August 1997)
HRH The Duke of Edinburgh
Prince Philip, Duke of Edinburgh
Prince Philip, Duke of Edinburgh is the husband of Elizabeth II. He is the United Kingdom's longest-serving consort and the oldest serving spouse of a reigning British monarch....

(born 10 June 1921)
HM Elizabeth II, Queen of the United Kingdom et al. (born 21 April 1926)
Edward Spencer, 8th Earl Spencer
Edward Spencer, 8th Earl Spencer
Edward John Spencer, 8th Earl Spencer MVO , styled Viscount Althorp until 1975, was a British peer and the father of Diana, Princess of Wales.-Education and military career:...

(24 January 1924 – 29 March 1992)
Frances Roche
Frances Shand Kydd
Frances Ruth Shand Kydd was the first wife of John Spencer, 8th Earl Spencer and the mother of Diana, Princess of Wales...

(20 January 1936 – 3 June 2004)
HRH Prince Andrew of Greece and Denmark (20 January 1882 – 3 December 1944)
HRH Princess Alice of Battenberg
Princess Alice of Battenberg
Princess Alice of Battenberg, later Princess Andrew of Greece and Denmark was the mother of Prince Philip, Duke of Edinburgh, and mother-in-law of Elizabeth II....

(25 February 1885 – 5 December 1969)
HM George VI, King of the United Kingdom et al.
George VI of the United Kingdom
George VI was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death...

(14 December 1895 – 6 February 1952)
Queen Elizabeth The Queen Mother (4 August 1900 – 30 March 2002)
Albert Spencer, 7th Earl Spencer
Albert Spencer, 7th Earl Spencer
Albert Edward John Spencer, 7th Earl Spencer , styled The Honourable Albert Spencer until 1910 and as Viscount Althorp from 1910 to 1922, and known less formally as "Jack" Spencer, was a British peer...

(23 May 1892 – 9 June 1975)
Cynthia Hamilton
Cynthia Spencer, Countess Spencer
Cynthia Elinor Beatrix Spencer, Countess Spencer, DCVO, OBE , known as Lady Cynthia Hamilton until her marriage, and from then as Viscountess Althorp until 1922 when her husband inherited his father's title of Earl Spencer, was a British peeress and the paternal grandmother of Diana, Princess of...

(16 August 1897 – 4 December 1972)
Maurice Roche, 4th Baron Fermoy (15 May 1885 – 8 July 1955)
Ruth Gill
Ruth Roche, Baroness Fermoy
Ruth Roche, Baroness Fermoy, DCVO, OBE, was a friend and confidante of Queen Elizabeth The Queen Mother, and the maternal grandmother of Lady Diana Spencer, later Princess of Wales....

(2 October 1908 – 6 July 1993)
HM George I, King of the Hellenes
George I of Greece
George I was King of Greece from 1863 to 1913. Originally a Danish prince, George was only 17 years old when he was elected king by the Greek National Assembly, which had deposed the former king Otto. His nomination was both suggested and supported by the Great Powers...

(24 December 1845 – 18 March 1913)
HIH Grand Duchess Olga Konstantinovna of Russia
Olga Konstantinovna of Russia
Grand Duchess Olga Constantinovna of Russia , later Queen Olga of the Hellenes , was the queen consort of King George I of Greece and briefly in 1920, Queen Regent of Greece...

(3 September 1851 – 18 June 1926)
HSH Prince Louis of Battenberg, later Louis Mountbatten, 1st Marquess of Milford Haven (24 May 1854 – 11 September 1921)
HGDH Princess Victoria of Hesse and by Rhine
Princess Victoria of Hesse and by Rhine
Princess Victoria of Hesse and by Rhine, later Victoria Mountbatten, Marchioness of Milford Haven was the eldest daughter of Louis IV, Grand Duke of Hesse and by Rhine and his first wife Princess Alice of the United Kingdom .Her mother died while her brother and sisters...

(5 April 1863 – 24 September 1950)
HM George V, King of the United Kingdom
George V of the United Kingdom
George V was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 through the First World War until his death in 1936....

(3 June 1865 – 20 January 1936)
Mary of Teck
Mary of Teck
Mary of Teck was the queen consort of the United Kingdom and the British Dominions, and Empress of India, as the wife of King-Emperor George V....

(26 May 1867 – 24 March 1953)
Claude Bowes-Lyon, 14th Earl of Strathmore and Kinghorne
Claude Bowes-Lyon, 14th Earl of Strathmore and Kinghorne
Claude George Bowes-Lyon, 14th Earl of Strathmore and Kinghorne, KG, KT, GCVO, TD, was a landowner and the maternal grandfather of Queen Elizabeth II....

(14 March 1855 – 7 November 1944)
Cecilia Cavendish-Bentinck (11 September 1862 – 23 June 1938)
Charles Robert Spencer, 6th Earl Spencer (30 October 1857 – 26 September 1922)
The Hon Margaret Baring (14 December 1868 – 4 July 1906)
James Hamilton, 3rd Duke of Abercorn
James Hamilton, 3rd Duke of Abercorn
James Albert Edward Hamilton, 3rd Duke of Abercorn KG, KP, PC , styled Marquess of Hamilton between 1885 and 1913, was a British peer and Unionist politician. He was the first Governor of Northern Ireland, a post he held between 1922 and 1945...

(30 November 1869 – 12 September 1953)
Rosalind Bingham
Rosalind Hamilton, Duchess of Abercorn
Lady Rosalind Cecilia Caroline Hamilton, DBE , the Duchess of Abercorn, was a British aristocrat. She was a great-grandmother of Diana, Princess of Wales.-Biography:...

(26 February 1869 – 18 January 1958)
James Roche, 3rd Baron Fermoy
James Roche, 3rd Baron Fermoy
James Boothby Burke Roche, 3rd Baron Fermoy was an Irish peer and a Member of Parliament in the United Kingdom House of Commons. He was the great-grandfather of Diana, Princess of Wales.-Biography:...

(28 July 1852 – 30 October 1920)
Frances Work
Frances Work
Frances Ellen Work was an American heiress and socialite. She was a great-grandmother of Diana, Princess of Wales, and her great-great-grandchildren include The Duke of Cambridge, Prince Harry, and the American actor Oliver Platt.-Biography:Born in New York City, she was a daughter of Franklin H...

(27 October 1857 – 26 January 1947)
Colonel William Smith Gill (16 February 1865 – 25 December 1957)
Ruth Littlejohn (4 December 1879 – 24 August 1964)
HM Christian, King IX of Denmark
Christian IX of Denmark
Christian IX was King of Denmark from 16 November 1863 to 29 January 1906.Growing up as a prince of Schleswig-Holstein-Sonderburg-Glücksburg, a junior branch of the House of Oldenburg which had ruled Denmark since 1448, Christian was originally not in the immediate line of succession to the Danish...

(8 April 1818 – 29 January 1906)
HSH Princess Luise of Hesse-Kassel
Louise of Hesse-Kassel
Louise of Hesse was a German Princess and the queen consort to King Christian IX of Denmark.-Early Life and Ancestry:...

(7 September 1817 – 29 September 1898)
HIH Grand Duke Konstantin Nikolayevich of Russia
Grand Duke Konstantin Nikolayevich of Russia
Grand Duke Konstantin Nikolayevich of Russia was the second son of Tsar Nicholas I of Russia.During the reign of his brother Alexander II, Konstantin was an admiral of the Russian fleet and reformed the Russian Navy. He was also an instrumental figure in the emancipation of the serfs...

(9 September 1827 – 13 January 1892)
HIH Grand Duchess Aleksandra Iosifovna of Russia (8 July 1830 – 23 June 1911)
HGDH Prince Alexander of Hesse and by Rhine
Prince Alexander of Hesse and by Rhine
Prince Alexander Ludwig Georg Friedrich Emil of Hesse, GCB was the third son and fourth child of Louis II, Grand Duke of Hesse and Wilhelmina of Baden.-Questioned parentage:...

(15 July 1823 – 15 December 1888)
Julia von Hauke
Julia von Hauke
Princess Julia of Battenberg was the wife of Prince Alexander of Hesse and by Rhine, the mother of Alexander, Prince of Bulgaria, and ancestress to the current generations of the British and the Spanish royal families.-Life:Julie Therese Salomea Hauke was born in Warsaw, in Congress Poland, then...

(12 November 1825 – 19 September 1895)
HRH Ludwig IV, Grand Duke of Hesse and by Rhine (12 September 1837 – 13 March 1892)
HRH The Princess Alice
Princess Alice of the United Kingdom
The Princess Alice was a member of the British royal family, the third child and second daughter of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha.Alice's education was devised by Albert's close friend and adviser, Baron Stockmar...

(25 April 1843 – 14 December 1878)
HM Edward VII, King of the United Kingdom
Edward VII of the United Kingdom
Edward VII was King of the United Kingdom and the British Dominions and Emperor of India from 22 January 1901 until his death in 1910...

(9 November 1841 – 6 May 1910)
HRH Princess Alexandra of Denmark
Alexandra of Denmark
Alexandra of Denmark was the wife of Edward VII of the United Kingdom...

(1 December 1844 – 20 November 1925)
HH Prince Francis, Duke of Teck (27 August 1837 – 21 January 1900)
HRH Princess Mary Adelaide of Cambridge
Princess Mary Adelaide of Cambridge
Princess Mary Adelaide Wilhelmina Elizabeth of Cambridge was a member of the British Royal Family, a granddaughter of George III, and great-grandmother of Elizabeth II. She held the title of Duchess of Teck through marriage.Mary Adelaide is remembered as the mother of Queen Mary, the consort of...

(27 November 1833 – 27 October 1897)
Claude Bowes-Lyon, 13th Earl of Strathmore and Kinghorne
Claude Bowes-Lyon, 13th Earl of Strathmore and Kinghorne
Claude Bowes-Lyon, 13th Earl of Strathmore and Kinghorne , styled The Honourable from 1847 to 1865, was a British peer. He was the 13th holder of the Earldom of Strathmore and Kinghorne....

(21 July 1824 – 16 February 1904)
Frances Bowes-Lyon, Countess of Strathmore and Kinghorne
Frances Bowes-Lyon, Countess of Strathmore and Kinghorne
Frances Dora Bowes-Lyon, Countess of Strathmore and Kinghorne was a British noblewoman. She was the paternal grandmother of Queen Elizabeth, the Queen Mother and thus a great grandmother of the current monarch, Queen Elizabeth II.Her father was Oswald Smith, of Blendon Hall , and her mother was...

(1830 – 5 February 1922)
Revd Charles Cavendish-Bentinck (8 November 1817 – 17 August 1865)
Carolina Burnaby (1833 – 6 July 1918)
Frederick Spencer, 4th Earl Spencer
Frederick Spencer, 4th Earl Spencer
Vice-Admiral Frederick Spencer, 4th Earl Spencer KG, CB, PC , styled The Honourable Frederick Spencer until 1845, was a British naval commander, courtier and Whig politician. He initially served in the Royal Navy and fought in the Napoleonic Wars and the Greek War of Independence, eventually rising...

(14 April 1798 – 27 December 1857)
Adelaide Spencer, Countess Spencer (27 January 1825 – 29 October 1877)
Edward Baring, 1st Baron Revelstoke
Edward Baring, 1st Baron Revelstoke
Edward Charles Baring, 1st Baron Revelstoke , was a British banker.-Biography:A member of the famous Baring banking family, "Ned" Baring was the second son of Henry Baring from his second marriage, to Cecilia Anne . Sir Francis Baring, 1st Baronet, was his grandfather and Evelyn Baring, 1st Earl of...

(13 April 1828 – 17 July 1897)
Louisa Baring, Baroness Revelstoke (1839 – 16 October 1892)
James Hamilton, 2nd Duke of Abercorn
James Hamilton, 2nd Duke of Abercorn
James Hamilton, 2nd Duke of Abercorn KG, CB, PC , styled Viscount Hamilton until 1868 and Marquess of Hamilton from 1868 to 1885, was a British nobleman and diplomat...

(24 August 1838 – 3 January 1913)
Mary Curzon-Howe (23 July 1848 – 10 May 1929)
Charles Bingham, 4th Earl of Lucan
Charles Bingham, 4th Earl of Lucan
Charles George Bingham, 4th Earl of Lucan KP , styled Lord Bingham from 1839 to 1888, was the eldest son of George Bingham, 3rd Earl of Lucan and Lady Anne Brudenell. His maternal grandparents were Robert Brudenell, 6th Earl of Cardigan and Penelope Anne Cooke.He married Lady Cecilia Catherine...

(8 May 1830 – 5 June 1914)
Cecilia Bingham, Countess of Lucan (13 April 1835 – 5 October 1910)
Edmond Roche, 1st Baron Fermoy
Edmond Roche, 1st Baron Fermoy
Edmond Burke Roche, 1st Baron Fermoy was an Irish Member of Parliament.Fermoy was the son of Edward Roche and Margaret Honoria Curtain. He was elected to the House of Commons for County Cork in 1837, a seat he held until 1855, and then represented Marylebone between 1859 and 1865. In 1855 he was...

(August 1815 – 17 September 1874)
Elizabeth Roche, Baroness Fermoy (9 August 1821 – 26 April 1897)
Frank Work (10 February 1819 – 16 March 1911)
Ellen Wood (18 July 1831 – 22 February 1877)
Alexander Ogston Gill
Barbara Smith Marr (died ca. 30 June 1898)
David Littlejohn (3 April 1841 – 11 May 1924)
Jane Crombie (died 19 September 1917)
HRH Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg
Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg
Friedrich Wilhelm Paul Leopold was the first Duke of the Second Line of Schleswig-Holstein-Sonderburg-Glücksburg and founder of a line that includes the Royal Houses of Denmark, Greece, Norway, and the United Kingdom...

(4 January 1785 – 17 February 1831)
HSH Princess Louise Caroline of Hesse-Cassel (28 September 1789 – 13 March 1867)
HSH Landgrave Wilhelm of Hesse-Kassel (24 December 1787 – 5 September 1867)
HRH Princess Louise Charlotte of Denmark
Princess Louise Charlotte of Denmark
Princess Louise Charlotte of Denmark was a princess of Denmark.She was born in Christiansborg Palace to Hereditary Prince Frederick of Denmark and Norway and Sophia Frederica of Mecklenburg-Schwerin , Princess and Duchess of Mecklenburg-Schwerin.-Marriage:On 10 November 1810 in Amalienborg Palace...

(30 October 1789 – 28 March 1864)
HIM Nicholas I, Tsar of all the Russias
Nicholas I of Russia
Nicholas I , was the Emperor of Russia from 1825 until 1855, known as one of the most reactionary of the Russian monarchs. On the eve of his death, the Russian Empire reached its historical zenith spanning over 20 million square kilometers...

(25 June 1796 – 18 February 1855)
HIM HIM Aleksandra Feodorovna, Empress of Russia (13 July 1798 – 20 October 1860)
HSH Joseph, Duke of Saxe-Altenburg (27 August 1789 – 25 January 1868)
HSH Duchess Amelia of Württemberg
Duchess Amelia of Württemberg
Amalie Therese Louise Wilhelmina Philippine of Württemberg was a Duchess of Württemberg and an ancestor of Prince Philip, Duke of Edinburgh, Queen Sofía of Spain and five Kings of Greece....

(28 June 1799 – 28 November 1848)
HRH Ludwig II, Grand Duke of Hesse and by Rhine (26 December 1777 – 16 June 1848)
HGDH Princess Wilhelmine of Baden (10 September 1788 – 27 January 1836)
Count Moritz von Hauke
John Maurice von Hauke
Count John Maurice Hauke was a professional soldier.-Life:...

(26 October 1775 – 29 November 1830)
Countess Moritz von Hauke (1790 – 27 August 1831)
HGDH Prince Karl of Hesse and by Rhine
Prince Karl of Hesse and by Rhine
Prince Charles of Hesse and by Rhine was the second son of Louis II, Grand Duke of Hesse and Wilhelmine of Baden.-Marriage:...

(23 April 1809 – 20 March 1877)
HRH Princess Elizabeth of Prussia
Princess Elizabeth of Prussia
Princess Elizabeth of Prussia was the second daughter of Prince Wilhelm of Prussia and Landgravine Marie Anna of Hesse-Homburg, granddaughter of Frederick William II of Prussia...

(18 June 1815 – 21 March 1885)
HRH Albert, Prince Consort (26 August 1819 – 14 December 1861)
HM Queen Victoria (24 May 1819 – 22 January 1901)
= 78
= 79
= 32
= 33
HRH Duke Alexander of Württemberg
Duke Alexander of Württemberg
Duke Alexander of Württemberg was the father of Prince Francis of Teck and the grandfather of Adolphus Cambridge, 1st Marquess of Cambridge and Queen Mary of Great Britain, wife of King George V....

(9 September 1804 – 4 July 1885)
Claudine Rhédey von Kis-Rhéde
Claudine Rhédey von Kis-Rhéde
Countess Claudine Rhédey de Kis-Rhéde was the wife of Duke Alexander of Württemberg. Her son, Francis, Duke of Teck was the father of Mary of Teck, Queen consort to George V of the United Kingdom....

(21 September 1812 – 1 October 1841)
HRH Prince Adolphus, Duke of Cambridge
Prince Adolphus, Duke of Cambridge
The Prince Adolphus, 1st Duke of Cambridge , was the tenth child and seventh son of George III and Queen Charlotte. He held the title of Duke of Cambridge from 1801 until his death. He also served as Viceroy of Hanover on behalf of his brothers George IV and William IV...

(24 February 1774 – 8 July 1850)
HSH Princess Augusta of Hesse-Cassel (25 July 1797 – 6 April 1889)
George Bowes-Lyon, Lord Glamis (6 February 1801 – 27 January 1834)
Charlotte Bowes-Lyon, Lady Glamis née Miss Charlotte Grimstead (1797 – 19 January 1881)
Oswald Smith (7 July 1794 – 18 June 1863)
Henrietta Hodgson
Lord Charles Bentinck (3 October 1780 – 28 April 1826)
Anne Wellesley (1788 – 19 March 1875)
Edwyn Burnaby
Edwyn Burnaby (1798–1867)
Edwyn Burnaby was an English landowner, of Baggrave Hall, Leicestershire, a Justice of the Peace, Deputy Lieutenant, and High Sheriff of Leicestershire in 1864. He also succeeded his father in the Court post of Gentleman of the Privy chamber.Edwyn was the eldest son of Edwyn Andrew Burnaby Sr.,...

(29 September 1798 – 18 July 1867)
Anne Salisbury (1805 – 3 May 1881)
George Spencer, 2nd Earl Spencer
George Spencer, 2nd Earl Spencer
George John Spencer, 2nd Earl Spencer KG PC FRS FSA , styled Viscount Althorp from 1765 to 1783, was a British Whig politician...

(1 September 1758 – 10 November 1834)
Lavinia Bingham (27 July 1762 – 8 June 1831)
Sir Horace Seymour
Horace Seymour
Colonel Sir Horace Beauchamp Seymour was a Peelite Member of Parliament for Lisburn, Antrim, Oxford, Bodmin and Midhurst....

(22 November 1791 – 23 November 1851)
Elizabeth Palk (died 18 January 1827)
Henry Baring
Henry Baring
Henry Baring , of Cromer Hall, Norfolk, was a British banker and politician. He was the third son of Sir Francis Baring, 1st Baronet, the founder of the family banking firm that grew into Barings Bank His grandfather John Baring emigrated from Germany and established the family in...

(18 January 1776 – 13 April 1848)
Cecilia Windham (16 February 1803 – 2 September 1874)
John Bulteel (died 10 September 1843)
Elizabeth Grey (10 July 1798 – 8 November 1880)
James Hamilton, 1st Duke of Abercorn
James Hamilton, 1st Duke of Abercorn
James Hamilton, 1st Duke of Abercorn KG PC , styled Viscount Hamilton from 1814 to 1818 and the Marquess of Abercorn from 1818 to 1868, was a British Conservative politician and statesman who twice served as Lord Lieutenant of Ireland.In 1860, The Times noted that Hamilton was one of only three to...

(21 January 1811 – 31 October 1885)
Louisa Russell
Louisa Hamilton, Duchess of Abercorn
Lady Louisa Jane Russell was the wife of James Hamilton, 1st Duke of Abercorn, and the daughter of John Russell, 6th Duke of Bedford, by his second wife Lady Georgiana Gordon...

(8 July 1812 – 31 March 1905)
Richard Curzon-Howe, 1st Earl Howe
Richard Curzon-Howe, 1st Earl Howe
Richard William Penn Curzon-Howe, 1st Earl Howe, GCH, PC was a British peer and courtier.Curzon was the third son of Hon...

(11 December 1796 – 12 May 1870)
Anne Gore (8 March 1817 – 23 July 1877)
George Bingham, 3rd Earl of Lucan (16 April 1800 – 10 November 1888)
Anne Bingham, Countess of Lucan née Lady Anne Brudenell (29 June 1809 – 2 April 1877)
Charles Gordon-Lennox, 5th Duke of Richmond
Charles Gordon-Lennox, 5th Duke of Richmond
Charles Gordon-Lennox, 5th Duke of Richmond and 5th Duke of Lennox KG, PC , styled Earl of March until in 1819, was a British soldier, politician and a prominent Conservative.-Background and education:...

(3 August 1791 – 21 October 1860)
Caroline Paget (6 June 1796 – 12 March 1874)
Edward Roche (13 July 1771 – 21 March 1855)
Margaret Curtain (1786 – 21 January 1862)
James Boothby (10 February 1791 – 28 October 1850)
Charlotte Cunningham (1799 – 22 January 1893)
John Wark (1783 – 16 April 1823)
Sarah Duncan Boude (15 December 1790 – 17 December 1860)
John Wood (29 July 1785 – 29 January 1848)
Eleanor Strong (ca. 1803 – 9 July 1863)
David Gill
Sarah Ogston
William Smith Marr (27 November 1810 – 13 February 1898)
Helen Bean (1814/5 – 20 July 1852)
William Littlejohn (12 August 1803 – 8 July 1888)
Janet Bentley (26 January 1811 – 1 October 1848)
James Crombie (13 January 1810 – 31 January 1878)
Katharine Forbes (1 December 1812 – 10 April 1893)

Other German definitions

European nobility took pride in displaying their descent. In the German language, the term "Ahnentafel" may refer to a list of coats of arms and names of one's ancestors, even when it does not follow the numbered tabular representation given above. In this case the German "Tafel" is taken literally to be a physical "display board" instead of an abstract scheme.

In Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

, the Law for the Restoration of the Professional Civil Service

Law for the Restoration of the Professional Civil Service

The Law for the Restoration of the Professional Civil Service , also known as Civil Service Law, Civil Service Restoration Act, and Law to Re-establish the Civil Service, was a law passed by the National Socialist regime on April 7, 1933, two months after Adolf...

required a person to prove non-Jewish ancestry with an Ariernachweis (Aryan certificate). The certificate could take the form of entries in the permanent Ahnenpass

Ahnenpass

The Ahnenpaß documented the Aryan lineage of citizens of Nazi Germany. It was one of the forms of the Aryan certificate ....

(that was sorted according to the ahnentafel numbering system) or as entries in a singular Arierschein (Aryan attestation) that was titled "Ahnentafel".