Castillo de Montemayor Monument · Montemayor, Campiña Sur, Córdoba Triangular fortress with three towers whose construction was authorized by Alfonso XI in 1340 to Martín Alfonso de Córdoba. Declared Bien de Interés Cultural (Spain's highest level of heritage protection) on 25 June 1985. The church of Nuestra Señora de la Asunción (1515), with a retable by Pedro Freila de Guevara (1633), was declared BIC on 17 June 2003. 25 de junio de 1985; 17 de junio de 2003 Photo: CFA1877 (CC BY-SA 4.0) What to see and do in Montemayor