Prince Sixtus Henry of Bourbon-Parma (Spanish: Don Sixto Enrique de Borbón-Parma y Borbón-Busset; Italian: Sisto Enrico di Borbone Parma; born 22 July 1940) is considered Regent of Spain by some Carlists who accord him the titles Duke of Aranjuez, Infante of Spain, and Standard-bearer of Tradition.
Prince Sixtus Henry of Bourbon-Parma is one of three pretending Grand Masters of the Order of Saint Lazarus (statuted 1910) since 2015.
Sixtus was born in Pau, Pyrénées-Atlantiques during the World War II Vichy regime of France, the second son of Prince Xavier of Bourbon-Parma (then Prince Regent, later Carlist pretender to the throne of Spain, later titular Duke of Parma) and his wife Madeleine de Bourbon-Busset. He belongs to a cadet branch of the former royal dynasty of France (and current dynasty of Spain), the House of Bourbon which ruled the independent Duchy of Parma in Italy until 1859, and reigns (patrilineally) today in Luxembourg. In exile, his family lived in France.
From an early age Sixtus devoted himself to the cause of Carlism. He studied with the Christian Brothers, Benedictines and Marists, as well as with his preceptress, Professor María Teresa Angulo, from Madrid. He later took courses in law (at Clermont-Ferrand), classical and modern languages, and finance.
Under the nom de guerre of Enrique Aranjuez he enlisted in the Spanish Foreign Legion in 1965. On 2 May that year he swore loyalty to the Spanish flag with the oath then in use, which excluded political compromise (as opposed to the later one, which states fidelity to the Spanish Constitution of 1978). Sixtus later volunteered with the Portuguese Armed Forces in the Angolan War of Independence.
Although the youngest of six children and the second son of his parents, Sixtus inherited his childhood home, the chateau de Lignières near the middle of France, from his mother whose dowry it had been.
In 2010, he sought a court order to prevent the continued exhibition of artworks by the Japanese artist Takashi Murakami at the Palace of Versailles. He has publicly stated that it „denatures“ French culture.
Sixtus was present at the episcopal ordination of four bishops who belong to the Society of Saint Pius X by Archbishop Marcel Lefebvre on 30 June 1988 at Écône, Switzerland, and was the first to publicly congratulate him.
Sixtus has travelled widely in Latin America, both Spanish and Portuguese-speaking. In January 2001, while traveling through Argentina, he was in a nearly fatal traffic accident, from which he did not completely recover. He has difficulties walking as a result of the accident, prompting him to limit public appearances.
- Bailiff Grand Cross of Honour and Devotion of the Sovereign Military Order of Malta
- One of three pretending Grand Masters of the Order of Saint Lazarus (statuted 1910) since 2015