Countess Xenia Czernichev-Besobrasov (Chernysheva-Besobrasova Russian: ??????? ?????? ????????? ?????????-???????????; 11 June 1929 Paris β 20 September 1968, Casteau, Belgium) was the first wife of Archduke Rudolf of Austria, the youngest son of the last reigning Emperor of Austria-Hungary, Charles I.