Ramon Berenguer IV, Count of Barcelona
Ramon Berenguer IV (; c. 1114 – 6 August 1162, Anglicized Raymond Berengar IV), sometimes called the Saint, was the count of Barcelona who brought about the union of the County of Barcelona with the Kingdom of Aragon to form the Crown of Aragon. Early reign Ramon Berenguer was born 1114, the son of Count Ramon Berenguer III of Barcelona and Countess Douce I of Provence. He inherited the county of Barcelona from his father Ramon Berenguer III on 19 August 1131. On 11 August 1137, at the age of about 24, he was betrothed to the infant Petronilla of Aragon, aged one at the time. Petronilla's father, King Ramiro II of Aragon, who sought Barcelona's aid against King Alfonso VII of Leon, withdrew from public life on 13 November 1137, leaving his kingdom to Petronilla and Ramon Berenguer, the latter in effect becoming ruler of Aragon, although he was never king himself, instead commonly using the titles "Count of the Barcelonans and Prince of the Aragonians" (Comes Barcinonensis et Princeps Aragonensis), and occasionally those of "Marquis of Lleida and Tortosa" (after conquering these cities). The treaty between Ramon Berenguer and his father-in-law, Ramiro II, stipulated that their descendants would