The Caspe Commitment.
The Gothic church was built in two stages, which can clearly be seen in the height of the naves.
It stands over part of the former acropolis built by the military Order of Saint John, the Knights Hospitaller. The reliquary of the True Cross is an important work of the goldsmith’s art. There are also two tombs, from the 14th and the 16th centuries. The entrance was decorated with sculptures which disappeared during the Civil War. The most valuable piece in the church, both due to its historic value and as a relic, is the chalice of the Commitment, fine metalwork in the Gothic style. In the atrium, Prince Ferdinand was proclaimed the King of Aragon.