The Taifa of Arcos was a Berber medieval taifa kingdom that existed in two periods; first from 1011 to 1068. Ruled by the Zanata Berber family of the Banū Jizrūn. From 1068 until 1091 it was under the forcible control of Seville, by Abbad II al-Mu'tadid. It regained its independence from 1143 to 1145 when it was finally conquered by the Almohads.
The Banū Jizrūn, belonging to the Berber Zanata confederation, led by Muhammad I, seized the cora of Sidonia after expelling the Ummayad governor that ruled. The dynasty proclaimed its independence, giving rise to the kingdom Taifa of Arcos in 1011, with its capital in the present city of Arcos de la Frontera .