Background
Sigismund was born in Lausanne the son of Archduke Leopold Franz and his first wife Princess Laetitia d"Arenberg, born Laetitia de Belzunce (and adopted by her stepfather Erik, 11th Duke of Arenberg).
Sigismund was born in Lausanne the son of Archduke Leopold Franz and his first wife Princess Laetitia d"Arenberg, born Laetitia de Belzunce (and adopted by her stepfather Erik, 11th Duke of Arenberg).
Sigismund was educated in computer science and has worked as a banker.
Since then, Sigismund has been the Head of the Grand Ducal House of Tuscany. His maternal family are said to possess businesses in Uruguay. Archduchess Elyssa is a great-great-granddaughter of Marshall Field and a third cousin of Camilla, Duchess of Cornwall.
The Edmonstone family is an old Scottish family that was raised to a baronetcy in 1774.
Their best-known member was the royal mistress Alice Keppel. The couple have three children: Archduke Leopold Amadeo, Grand Prince of Tuscany (born 9 May 2001), heir apparent to the headship of the House of Tuscany Archduchess Tatyana of Austria, Princess of Tuscany (born 3 March 2003) Archduke Maximilian of Austria, Prince of Tuscany (born 27 May 2004) Sigismund lives with his family in Lausanne, Switzerland.