Abu al-Qasim Muhammad ibn Abbad
Abu al-Qasim Muhammad ibn Abbad was the eponymous founder of the Abbadid dynasty; he was the first independent Muslim ruler of Seville in Al-Andalus ruling from 1023 until his death in 1042.
Abu al-Qasim Muhammad ibn Abbad was a qadi when he was named governor of Seville by the caliph of Cordoba, Yahya ibn [Ali ibn Hammud al-Mu'tali], in 1023. However, with the Caliphate of Cordoba losing its integrity, the Abbadids, a Sevillan family of Arabic origins, seized control.
As a result, later in 1023, Abu al-Qasim Muhammad ibn Abbad declared Seville independent from Córdoban rule, establishing the taifa of Seville.