Eduard, Prince of Anhalt
Julius Eduard Ernst August Erdmann Prince von Anhalt( born 3 December 1941), usually referred to as Prince Eduard, is the head of the House of Ascania, the family which ruled the Duchy of Anhalt until 1918.
Sizzo, Prince of Schwarzburg
Günther Sizzo, Prince of Schwarzburg (3 June 1860 – 24 March 1926) was the head of the House of Schwarzburg and pretender to the principalities of Schwarzburg-Rudolstadt and Schwarzburg-Sondershausen.
Joachim Ernst, Duke of Anhalt
Joachim Ernst, Duke of Anhalt( 11 January 1901 – 18 February 1947) was the last ruler of the Duchy of Anhalt.
Louise of Anhalt-Dessau (1709–1732)
Louise, Princess of Anhalt- Bernburg( née Princess Louise of Anhalt- Dessau; 21 August 1709 – 29 July 1732) was the first wife and consort of Victor Frederick, Prince of Anhalt- Bernburg.
Charlotte Knollys
Elizabeth Charlotte Knollys (5 January 1835 – 24 April 1930) was an English courtier and member of the Knollys family.
She was Lady of the Bedchamber, and the first woman private secretary, to Princess Alexandra of Denmark, later Queen Alexandra of the United Kingdom, consort of Edward VII of the United Kingdom.
Leopold IV, Duke of Anhalt
Leopold IV Frederick, Duke of Anhalt (1 October 1794 – 22 May 1871) was a German prince of the House of Ascania.
From 1817 until 1853 he was ruler of the duchy of Anhalt-Dessau and from 1847 until 1853 also ruler of the duchy of Anhalt-Köthen.
From 1853 until 1863 he was the ruler of the joined duchy of Anhalt-Dessau-Köthen and from 1863 the first ruler of the united duchy of Anhalt.
Pieter van Vollenhoven
Pieter van Vollenhoven Jr.( born April 30, 1939) is the husband of Princess Margriet of the Netherlands and a member, by marriage, of the Dutch Royal House.
Princess Alexandra of Anhalt
Princess Alexandra Therese Marie of Anhalt (4 April 1868 - 26 August 1958) was a Princess of Anhalt and member of the House of Ascania by birth.
As the wife of Sizzo, Prince of Schwarzburg, she was a Princess of Schwarzburg by marriage.
Princess Alexandra of Hanover (born 1999)
Princess Alexandra of Hanover( Alexandra Charlotte Ulrike Maryam Virginia; born 20 July 1999) is the only child of Princess Caroline of Monaco and Prince Ernst August of the defunct Kingdom of Hanover.
Angus Ogilvy
Sir Angus James Bruce Ogilvy,( 14 September 1928 – 26 December 2004) was a British businessman, best known as the husband of Princess Alexandra, a first cousin of Queen Elizabeth II.
Ogilvy is also remembered for his role in a scandal involving the breaking of sanctions against the regime in Rhodesia in the 1970s in the Lonrho affair.
In later years, he was heavily involved in charity work.

Question: Where was the husband of Princess Alexandra Of Anhalt born?
Answer: Rudolstadt