Otto von Habsburg (20 November 1912 4 July 2011), also known by his royal name as
Archduke Otto of Austria, was the last
Crown Prince of Austria-Hungary from 1916 until the dissolution of the empire in 1918, a realm which comprised modern-day Austria, Hungary, Bosnia and Herzegovina, Croatia, the Czech Republic, Slovakia, Slovenia, and parts of Italy, Montenegro, Poland, Romania, Serbia and Ukraine. He subsequently became the
pretender to the former thrones, Head of the
House of Habsburg-Lorraine, and
Sovereign of the
Order of the Golden Fleece in 1922, upon the death of his father. He resigned as Sovereign of the Golden Fleece in 2000 and as head of the Imperial House in 2007.