Archduke Sigismund of Austria (born 1966)

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Archduke Sigismund
Head of the House of Habsburg-Tuscany
Tenure1993 – present
PredecessorArchduke Leopold Franz
Heir apparentArchduke Leopold Amadeo
Born (1966-04-21) 21 April 1966 (age 55)
Lausanne, Switzerland
(m. 1999; div. 2013)
IssueLeopold Amadeo
FatherArchduke Leopold Franz of Austria
MotherLaetitia d'Arenberg
ReligionRoman Catholic

Archduke Sigismund of Austria (Sigismund Otto Maria Josef Gottfried Heinrich Erik Leopold Ferdinand Von Habsburg-Lothringen; born 21 April 1966) is the current head of the Tuscan branch of the House of Habsburg-Lorraine and titular Grand Duke of Tuscany.[1] His great-great grandfather Ferdinand IV was the last Grand Duke of Tuscany.


Sigismund was born in Lausanne the son of Archduke Leopold Franz and his first wife Laetitia d'Arenberg, born Laetitia de Belzunce (and adopted by her stepfather Erik, 11th Duke of Arenberg).[1][2] Sigismund has a BSc in computer science and has worked as a software engineer banker.[1]

On 18 June 1993 Sigismund's father Leopold Franz renounced his rights as Head of the Tuscan branch of the Habsburgs in favour of Sigismund on his second marriage.[1]

Sigismund is Grand Master of the Order of Saint Joseph and the Order of Saint Stephen, the two orders of knighthood of the Grand Ducal House of Tuscany. He has also a served as a patron for the Almanach de Gotha.[3]

Sigismund was raised in Uruguay and Switzerland by his mother and father. His maternal family are said to possess businesses in Uruguay.


In 1999, Sigismund married Elyssa Edmonstone (born Glasgow, 11 September 1973), the only daughter of Sir Archibald Bruce Edmonstone, of Duntreath, 7th Baronet by his second wife Juliet Elizabeth Deakin.[4] 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. Through this family connection, Elyssa and Camilla, Duchess of Cornwall are third cousins. The couple are divorced since 25 June 2013, with annulment in 2016. The couple have three children, Archduke Leopold, Grand Prince of Tuscany, Archduchess Tatyana and Archduke Maximilian.[1]

Sigismund lives with his family in Lausanne, Switzerland. In 2017, the renunciation of French citizenship (obtained through his French mother) was legally recorded for him and his children, under the name Sigismond Otto Maria Joseph Gottfried Heinrich Erik Leopold Ferdinand de Habsbourg-Lorraine.[5]

Titles and styles[edit]

As head of the grand ducal house of Tuscany, Sigismund's titles in pretence include Archduke of Austria and Grand Duke of Tuscany with the style His Imperial and Royal Highness.[1]


  1. ^ a b c d e f Almanach de Gotha (2018). Page 56
  2. ^ Arenberg Genealogy Archived 15 July 2007 at the Wayback Machine
  3. ^ Almanach de Gotha, Comité de Patronage
  4. ^ "Archduke Sigismund of Austria and Miss E.J. Edmonstone". The Times. UK. 13 September 1999. p. 20.
  5. ^ Text N° 56. Journal officiel de la République française - N° 275. 25 novembre 2017.

External links[edit]

Archduke Sigismund of Austria (born 1966)
Cadet branch of the House of Lorraine
Born: 21 April 1966
Titles in pretence
Preceded by
Archduke Leopold Franz of Austria
Grand Duke of Tuscany
Reason for succession failure:
Tuscany incorporated into the United Provinces of Central Italy
Archduke Amadeo,
Grand Prince of Tuscany
Line of succession to the defunct Austro-Hungarian throne
44th position