Sancho Ramírez
Sancho Ramírez (c. 1042–1094) succeeded his father Ramiro I as king of Aragon in 1063. In 1067–1068 he and Sancho IV of Navarre lost to Sancho II of Castile. After Sancho IV was murdered by his siblings in 1076, Sancho Ramírez became king of Pamplona as well, ceding Navarre's western lands to Alfonso VI of Castile.
He took Barbastro, Graus and Monzón, but was routed by El Cid near Morella. He fell besieging Huesca on 4 June 1094, leaving the crown to his son Peter I.