The counts of Berga were the feudal lords of Berga, one of the Catalan counties created out of Besalú in 988 for a younger son of Oliba Cabreta. The viscounts of Berga ruled the city in name during the rule of the counts of Besalú from the early tenth century.Gran enciclopèdia catalana: Vescomtat de Berga
Counts
Source:
Oliba (988-1002) Wilfred (1002-1035) Bernard I (1035-1050) Berengar (1050) Raymond (1050-1068) William I (1068-1094) William II (1094-1109) co-reigning with Bernard II (1094-1117) To the counts of Barcelona.
Viscounts
Source:
Brandai (905-?) Onofred (c.950) Bardina (1003-1017) Dalmau I (1017-1067) Bernat Dalmau (1067-1086) Dalmau II Bernat (1086-1113) Guisla (1113-?) William I (?-1183) William II (1183-1196) Berengar (1196-1199) Raymond (1199) Sold to Peter II of Aragón.
References
Further reading Sabaté i Curull, Flocel: "La noció d'Espanya a la Catalunya medieval". In: Acta historica et archaeologica mediaevalia, No. 19, 1998, pp. 375–390. ISSN 0212-2960 (online version) Santandreu i Soler, Dolors, 2006: La Vila de Berga a L'Edat Mitjana - La Família dels Berga, vol. 1. Doctoral thesis, University of Barcelona (online version)