The Iglesia de la Trinidad, or old Convent of the Trinity, was originally built by king Ferdinand on a site formerly occupied by a mosque; however, nothing remains of that period or the subsequent San Juan de los Caballeros.
The present building dates back to approximately 1710.
The architect of the edifice is unknown; however, indications point towards the maestro Francisco Hurtado Izquierdo.
The building takes the form of a single nave church with an unpronounced cross aisle and rectangular apse.
It has two 18th century facades with Solomonic columns and possesses a noteworthy set of 18th century altarpieces, and also boasts wall paintings by Antonio Palomino depicting scenes from the Old Testament.
