About Prince Antônio Gastão of Orléans-Braganza
Captain Prince Antônio Gastão of Orléans-Braganza MC (Portuguese: Antônio Gastão de Orléans e Bragança; 9 August 1881 – 29 November 1918) was a Brazilian-born prince of the House of Orléans-Braganza and a military officer who served with distinction in the forces of the British Empire during World War I. A member of the former Brazilian imperial family, Prince Antônio Gastão volunteered for service with the British Army during the war and rose to the rank of captain. He was awarded the Military Cross for gallantry in action, becoming one of the few members of a deposed royal house to receive a British military decoration during the conflict. He was promoted to captain in 1916, and was awarded the Military Cross in 1917.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.