Berenguer de Barcelona was a notable figure in the history of medieval Catalonia. He served as the Count of Barcelona from 1097 until his death in 1131. His reign was marked by efforts to expand the territory and influence of the County of Barcelona, particularly through military campaigns against the Moors. During his rule, Berenguer played a significant role in the consolidation of power in the region. He was involved in various alliances and marriages that strengthened ties with other noble families, contributing to the political landscape of Aragon and Catalonia. His legacy is remembered for shaping the early medieval history of the area.