The town of Arcos de la Frontera gained its name by being the frontier of Spain’s 13th century battle with the Moors. It was a bulwark of Christianity after Alfonso the Wise of Castile (1252–1284) expelled the Moors. He constructed a Gothic cathedral which remains on its high ridge.
This Gothic cathedral is famed for its ten bells, which tolled throughout the war with the Moors. Several Moorish banners were taken in the nearby battle of Zahara and have been on display in a church in Arcos since 1483.