| Prince Sixtus | |||||
|---|---|---|---|---|---|
 Prince Sixtus around 1930 | |||||
| Born | 1 August 1886 Schloss Wartegg, Canton of St. Gallen, Switzerland | ||||
| Died | 14 March 1934 (aged 47) Paris, France | ||||
| Burial | Souvigny Abbey | ||||
| Spouse | Hedwige de la Rochefoucauld | ||||
| Issue | Princess Isabelle | ||||
| |||||
| House | House of Bourbon-Parma | ||||
| Father | Robert I, Duke of Parma | ||||
| Mother | Infanta Maria Antonia of Portugal | ||||
Prince Sixtus of Bourbon-Parma (German: Sixtus Ferdinand Maria Ignazio Alfred Robert von Bourbon-Parma; 1 August 1886 – 14 March 1934) was a member of the House of Bourbon-Parma, a Belgian officer in World War I, and the central figure in the Sixtus Affair, an attempt to negotiate a treaty to end Austria-Hungary's participation in the Great War separate from its Central Powers allies. He also wrote a number of books.