Sixtus of Bourbon-Parma was a member of the House of Bourbon-Parma, born on November 5, 1886. He was the son of Robert I, Duke of Parma and Maria Antonia of Portugal. Sixtus served in the Austro-Hungarian Army during World War I and later became known for his involvement in various political and diplomatic efforts. In 1919, Sixtus married Princess Maria of Bourbon-Two Sicilies, and they had several children. He was a prominent figure in the royal family and played a role in the restoration of the Bourbon dynasty in Italy. Sixtus passed away on March 14, 1934.