Alexander Obolensky, Russian rugby player and pilot (d. 1940)
Prince Alexander Sergeevich Obolensky (Russian: Александр Серге́евич Оболенский; 17 February 1916 – 29 March 1940) was a Rurikid prince of Russian origin who became a naturalised Briton, having spent most of his life in England, and who went on to represent England in international rugby union. He was, and remains, popularly known as "The Flying Prince", "The Flying Slav", or simply as "Obo" to many sports fans.