Belongs to the 13th- 15th centuries. It is a convent from the Order of St Domingo originally built in a Romanesque style (1218). It was rebuilt under the government of the Catholic Kings to honour St Domingo de Guzman with a convent, over the Penitential Cave of the Saint. We can see on the outside a Gothic doorway from the 15th century, work of Juan Guas. In the present times, houses the Instituto Empresa Universidad.