The Bellonids (, , ), sometimes called the Bellonid Dynasty, were the counts descendant of the Goth Belló who ruled in Carcassonne, Urgell, Cerdanya, County of Conflent, Barcelona, and numerous other Catalan and Septimanian counties and marches in the 9th and 10th centuries. His most famous grandson was Wilfred the Hairy, who founded the House of Barcelona, rulers of the County of Barcelona from 878, and since 1164 the Crown of Aragon, until the end of the reign of Martin the Humane in 1410.