كونتية برشلونة
However, on the death of his uncle, Count Radulf I of Besalú, in 913 or 920, a conflict emerged between Sunyer and his brother Count Miró II of Cerdanya over the succession of the County of Besalú. In exchange for the total renunciation of all claims on the County of Barcelona, Sunyer gave up his claim on Besalú.