Moorish-Berber relations were solidified after the Córdobian Civil War, in which Hisham II invited Berbers into Europe to help against his rivals, seeking to overthrow him. The Berbers would, in return for their military aid, be guaranteed a degree of sovereignty inside the Córdobian Caliphate, including the position of Chancellor occupied previously by Hisham II's bitter rival in the war Muhammad Ibn Abi Aamir.