Alfonso, Prince of Asturias, RE (Alfonso P?o Cristino Eduardo Francisco Guillermo Carlos Enrique Eugenio Fernando Antonio Venancio de Borb?n y Battenberg; 10 May 1907 ? 6 September 1938), heir apparent to the throne of Spain from 1907 to 1931. Eldest son of King Alfonso XIII of Spain and his wife, Princess Victoria Eugenia (Ena) of Battenberg. Inherited haemophilia from his mother. Renounced his rights to the then-defunct throne to marry a commoner, Edelmira Ignacia Adriana Sampedro-Robato, in Ouchy on 21 June 1933, after which Alfonso took the courtesy title Count of Covadonga. The couple divorced 8 May 1937, with Edelmira keeping the title Countess of Covadonga. A car accident led to Alfonso's early death in 1938, at the age of 31. He crashed into a telephone booth and appeared to have minor injuries but his haemophilia led to fatal internal bleeding.