Acfred was the younger son of Oliba I of Carcassonne. He inherited Razès on his father's death, while his elder brother Oliba II inherited Carcassonne. Acfred and Oliba probably shared authority with each other in their two counties until the elder's death in 877, when Acfred inherited both counties, probably as the regent for his nephew Bencion I, but actually as count in his own right. Bencion nevertheless succeeded him on his death.
- Lewis, Archibald R. The Development of Southern French and Catalan Society, 718–1050. University of Texas Press: Austin, 1965.