Historian Joseph F. O'Callaghan says the remnants of the Hispano-Gothic aristocracy still played an important role in the society of Hispania. At the end of Visigothic rule, the assimilation of Hispano-Romans and Visigoths was occurring at a fast pace. Their nobility had begun to think of themselves as constituting one people, the "gens Gothorum" or the "Hispani". An unknown number of them fled and took refuge in Asturias or Septimania. In Asturias they supported Pelagius's uprising, and joining with the indigenous leaders, formed a new aristocracy. The population of the mountain region consisted of native Astures, Galicians, Cantabri, Basques and other groups unassimilated into Hispano-Gothic society.