Castillo de la Mota - Palacio Ducal de Marchena Monument · Marchena, Campiña de Marchena y Morón, Seville Remains of the Castillo de la Mota castle-palace of Marchena, former residence of the Dukes of Arcos, today visible ruins. Photo: Carlosrs (CC BY-SA 3.0) What to see and do in Marchena