Ramiro II of Aragon (d. 1157)
Ramiro II (24 April 1086 – 16 August 1157), called the Monk, was the ruler of the Kingdom of Aragon from 1134 until withdrawing from public life in 1137. Although a monk, he was elected king by the Aragonese nobility upon the death of his childless brother, Alfonso the Battler. He then had a daughter, Petronilla, whom he had marry Count Ramon Berenguer IV of Barcelona, unifying Aragon and Barcelona into the Crown of Aragon.