Federales was the name under which the supporters of federalism in Argentina were known, opposing the Unitarios that claimed a centralised government of Buenos Aires Province, with no participation of the other provinces of the custom taxes benefits of the Buenos Aires port. The Federales supported the autonomy of the provincial governments and the distribution of external commerce taxes among the provinces. In general, the Federals were provincial governors and leaders, some of which became caudillos, such as Juan Facundo Quiroga.