Founded in the reign of Alfonso X, the church was probably completely rebuilt in 1480, as the nave with its beautiful 16C star-shaped vault bears witness. The apse is distinctive because of its 17C polygonal altarpiece, which takes pride of place over a 19C painting on wood of Saint Mark's head. The thirteen other 16C wooden panels are of Flemish influence. The left side aisle takes in the 15C Baptismal Chapel.