Princess Auguste of Schleswig-Holstein-Sonderburg-Glücksburg (27 June 1633 – 26 May 1701) was a Danish-German princess of the senior Glücksburg line of the Duke of Schleswig-Holstein. She was the first Duchess of Augustenborg by marriage. The royal line, the palace, and the town of Augustenborg, were named in honor of her.

The great-granddaughter of king Christian III of Denmark

Christian III of Denmark

Christian III reigned as king of Denmark and Norway. He was the eldest son of King Frederick I and Anna of Brandenburg.-Childhood:...

, she was the third daughter, eighth by birth, of Philip, Duke of Schleswig-Holstein-Sonderburg-Glücksburg

Philip, Duke of Schleswig-Holstein-Sonderburg-Glücksburg

Philip of Schleswig-Holstein-Sonderburg-Glücksburg was the first Duke of Schleswig-Holstein-Sonderburg-Glücksburg after the death of his father in 1622...

 and Princess Sophia Hedwig of Saxe-Lauenburg. She was sister of Sophia Dorothea of Schleswig-Holstein-Sonderburg-Glücksburg

Family and children

On 15 June 1651, at Copenhagen

Copenhagen

Copenhagen is the capital and largest city of Denmark, with an urban population of 1,199,224 and a metropolitan population of 1,930,260 . With the completion of the transnational Øresund Bridge in 2000, Copenhagen has become the centre of the increasingly integrating Øresund Region...

, she married her first cousin Ernest Günther (14 October 1609 – 18 January 1689), son of Duke Alexander of Schleswig-Holstein-Sonderburg and his wife Countess Dorothea of Schwarzburg-Sondershausen. They had ten children:

1. Frederick (10 December 1652 – 3 August 1692)
2. Sofie Amalie (25 August 1654 – 7 December 1655)
3. Philipp Ernst (24 October 1655 – 8 September 1677)
4. Sofie Auguste (2 February 1657 – 20 July 1657)
5. Luise Charlotte (13 April 1658 – 2 May 1740), married on 1 January 1685 to Duke Frederick Louis of Holstein-Sonderburg-Beck
6. Ernestine Justine (30 July 1659 – 18 October 1662)
7. Ernst August (3 October 1660 – 11 May 1731)
8. Dorothea Luise (11 October 1663 – 21 April 1721), Abbess of Itzehoe
   Itzehoe
   Itzehoe is a town in the German state of Schleswig-Holstein.As the capital of the district Steinburg, Itzehoe is located on the Stör, a navigable tributary of the Elbe, 51 km northwest of Hamburg and 24 km north of Glückstadt...
   
    in 1686-1721
9. a child, born and died 18 December 1665
10. Frederick William (18 November 1668 – 3 June 1714)

Titles and styles

• 27 June 1633 – 15 June 1651: Her Serene Highness Princess Auguste of Schleswig-Holstein-Sonderburg-Glücksburg
• 15 June 1651 – 18 January 1689: Her Serene Highness The Duchess of Schleswig-Holstein-Sonderburg-Augustenburg
• 18 January 1689 – 26 May 1701: Her Serene Highness The Dowager Duchess of Schleswig-Holstein-Sonderburg-Augustenburg

Ancestry