He inherited the county of Barcelona from his father Ramon Berenguer III in 1131.
In 1137 he was betrothed to the infant Petronilla of Aragon, and essentially became ruler of that kingdom. However, he never called himself king, but instead Prince of Aragon.
In the middle years of his rule his attention turned to the conquest of territory from the Muslims. In conjunction with various allies he captured Tortosa (1148), Fraga (1149), and Lleida (1149).
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Preceded by: Ramon Berenguer III, Count of Barcelona |
Counts of Barcelona |
Followed by: Alfonso II of Aragon |