Alexander,

Duke Duke is a male title either of a monarch ruling over a duchy, or of a member of royalty, or nobility. As rulers, dukes are ranked below emperors, kings, grand princes, grand dukes, and sovereign princes. As royalty or nobility, they are r ...

of Schleswig-Holstein-Sonderburg, (20 January 157313 May 1627) was a Danish nobleman. Alexander was born in

Sønderborg (; german: Sonderburg ) is a Danish town in the Region of Southern Denmark. It is the main town and the administrative seat of Sønderborg Municipality (Kommune). The town has a population of 27,766 (1 January 2022),Schleswig The Duchy of Schleswig ( da, Hertugdømmet Slesvig; german: Herzogtum Schleswig; nds, Hartogdom Sleswig; frr, Härtochduum Slaswik) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km ...

, the third son of

John II, Duke of Schleswig-Holstein-Sonderburg John the Younger or John of Denmark ( da, Hans; german: Johann; 25 March 1545 – 9 October 1622) was the Duke of Schleswig-Holstein-Sonderburg. Biography John was born on 25 March 1545 in Haderslev in the Duchy of Schleswig as the fourth ch ...

and

Elisabeth of Brunswick-Grubenhagen Elizabeth of Brunswick-Grubenhagen (20 March 1550 – 11 February 1586) was the first wife of Duke John of Schleswig-Holstein-Sonderburg, the son of King Christian III of Denmark. Family Elisabeth was born on 20 March 1550. She was the only d ...

. Because his elder surviving brother chose Ærø as his seat, Alexander received Sønderborg upon their father's death and was in practice its second duke. Alexander died in Sønderborg.

Marriage and issue

Alexander married

Dorothea of Schwarzburg-Sondershausen Dorothea (also spelled Dorothée, Dorotea or other variants) is a female given name from Greek (Dōrothéa) meaning "God's Gift". It may refer to: People * Dorothea Binz (1920–1947), German concentration camp officer executed for war cri ...

, daughter of

John Günther I, Count of Schwarzburg-Sondershausen John Günther I of Schwarzburg-Sondershausen (also known as ''Hans Günther'' or ''Johann Günther''; 20 December 1532 in Sondershausen – 28 October 1586 in Arnstadt) was the co-ruler of Schwarzburg from 1552 until 1571 and the sole ruler Sc ...

, on 26 November 1604 in Oldenburg. They had eleven children: * John Christian (26 April 1607 – 28 June 1653) * Alexander Henry (12 September 1608 – 5 September 1657) * Ernest Günther (14 October 1609 – 18 January 1689) * George Frederick (18 December 1611 – 23 August 1676) * August Philipp (11 November 1612 – 6 May 1675) * Adolph (2 November 1613 – 1 February 1616), died young * Anna Elisabeth (5 February 1615 – 19 February 1616), died young * William Anton (2 April 1616 – 2 April 1616), died soon after birth * Sophie Katharina (28 June 1617 – 22 November 1696), wife of Anthony Günther, Count of Oldenburg * Eleonore Sabine (27 February 1619 – 27 February 1619), died soon after birth * Philip Louis (27 October 1620 – 10 March 1689)

Ancestors

1573 births 1627 deaths Dukes of Germany House of Oldenburg in Schleswig-Holstein People from Augustenborg, Denmark {{Germany-duke-stub