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, dying in 1042.
The qadi Abu al-Qasim Muhammad ibn Abbad was named governor of Seville by caliph Yahya ibn Ali ibn Hammud al-Mu'tali in 1023. However, with the Caliphate of Cordoba losing 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.