Henry II (13 January 1334 – 29 May 1379), called Henry of Trastámara or the Fratricidal (el Fratricida), was the first King of Castile and León from the House of Trastámara. He became king in 1369 by defeating his half-brother Peter the Cruel , after numerous rebellions and battles.
Henry I of Castile (14 April 1204 – 6 June 1217) was king of Castile. He was the son of Alfonso VIII of Castile and Eleanor of England, Queen of Castile (daughter of Henry II of England and Eleanor of Aquitaine). He was the brother of Berenguela and Mafalda of Castile.