Chula Chakrabongse
Prince Chula Chakrabongse of Siam (28 March 1908 – 30 December 1963) (พระเจ้าวรวงศ์เธอ พระองค์เจ้าจุลจักรพงษ์), was a member of the Siamese (Thai) Royal Family, and the House of Chakrabhongse. He was the only child of Prince Chakrabhongse Bhuvanath, The Prince of Phitsanulok, and his Ukrainian wife, Ekaterina (Catherine) Desnitskaya (later Mom Catherine Na Phitsanulok). He was a grandson of King Chulalongkorn, Rama V of Siam.
Read more about Chula Chakrabongse: Early Life, Later Life