Frederick I von Staufen (1050 – July 21, 1105) was Duke of Swabia

Duke of Swabia

The following is a list of Dukes of Swabia in southwest Germany.Swabia was one of the five stem duchies of the medieval German kingdom, and its dukes were thus among the most powerful magnates of Germany. The most notable family to hold Swabia were the Hohenstaufen, who held it, with a brief...

 from 1079 to his death. He was the first ruler of Swabia from the House of Hohenstaufen, and was the builder of dynasty's ancestral Hohenstaufen Castle

Hohenstaufen Castle

Hohenstaufen Castle is a ruin, lying above the town of Hohenstaufen, in the district of Göppingen in Baden-Württemberg, Germany. It was the seat of the now-defunct House of Hohenstaufen....

 near Göppingen

Göppingen

Göppingen is a town in southern Germany, part of the Stuttgart Region of Baden-Württemberg. It is the capital of the district Göppingen. It is situated at the bottom of the Hohenstaufen mountain, in the valley of the river Fils....

.

Parents

He was the son of Frederick von Büren, Count in the Riesgau

Nördlinger Ries

The Nördlinger Ries is a large circular depression in western Bavaria, Germany, located north of the Danube in the district of Donau-Ries. The city of Nördlingen is located about southwest of the centre of the depression....

 and Swabian Count Palatine

Count palatine

Count palatine is a high noble title, used to render several comital styles, in some cases also shortened to Palatine, which can have other meanings as well.-Comes palatinus:...

, with Hildegard of Egisheim

Eguisheim

Eguisheim is a commune in the Haut-Rhin department in Alsace in north-eastern France.Eguisheim produces Alsace wine of high quality. The commune is largely German-speaking.-History:...

-Dagsburg, a niece of Pope Leo IX

Pope Leo IX

Pope Saint Leo IX , born Bruno of Eguisheim-Dagsburg, was Pope from February 12, 1049 to his death. He was a German aristocrat and as well as being Pope was a powerful secular ruler of central Italy. He is regarded as a saint by the Roman Catholic Church, with the feast day of April 19...

, or a daughter of the Ezzonid Duke Otto II of Swabia

Otto II, Duke of Swabia

Otto II was Count Palatine of Lotharingia , then Duke of Swabia , and all the while Count in Deutz and Auelgau . He was the son of Ezzo and Matilda , and a member of the Ezzonian dynasty...

.

Marriage and issue

In 1089, Frederick married Agnes of Germany

Agnes of Germany

Agnes of Germany was the daughter of Henry IV, Holy Roman Emperor and Bertha of Savoy. Her maternal grandparents were Otto, Count of Savoy, Aosta and Moriana and Adelaide, Marchioness of Turin and Susa....

, daughter of Henry IV, Holy Roman Emperor

Henry IV, Holy Roman Emperor

Henry IV was King of the Romans from 1056 and Holy Roman Emperor from 1084 until his forced abdication in 1105. He was the third emperor of the Salian dynasty and one of the most powerful and important figures of the 11th century...

. They had several sons and daughters, amongst whom were:

• Frederick II of Swabia
  Frederick II, Duke of Swabia
  Frederick II , called the One-Eyed, was the second Hohenstaufen duke of Swabia from 1105. He was the eldest son of Frederick I and Agnes....
  
   (1090–1147), the father of Frederick Barbarossa
  Frederick I, Holy Roman Emperor
  Frederick I Barbarossa was a German Holy Roman Emperor. He was elected King of Germany at Frankfurt on 4 March 1152 and crowned in Aachen on 9 March, crowned King of Italy in Pavia in 1155, and finally crowned Roman Emperor by Pope Adrian IV, on 18 June 1155, and two years later in 1157 the term...
  
  
• Conrad III, King of Germany
  Conrad III of Germany
  Conrad III was the first King of Germany of the Hohenstaufen dynasty. He was the son of Frederick I, Duke of Swabia, and Agnes, a daughter of the Salian Emperor Henry IV.-Life and reign:...
  
   (1093–1152)

Sources

• Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis, Line 45-24

External links

• FMG on Frederick I, Duke of Swabia