It is an unusual Late Romanesque temple as it is designed to be both a church and a castle and so has architectural characteristics of both buildings.

As a church it has one barrel vaulted nave, a semicircular apse and all the typical decorations of Romanesque churches; these include a carved portal with archivolts, rose windows and carved capitals.

The church was relocated to its current position from the valley in the 1960s when the river was flooded to form a reservoir.

It is situated on the principal route of the Way of St. James to Santiago de Compostela, where other Templar and Knight Hospitaller churches and castles were constructed as a result of the effort of the Hospital Orders to protect the way to the tomb of Santiago; others include the churches of Torres del Río, Eunate and the Castle of Ponferrada[broken anchor].

This article about a church building or other Christian place of worship in Spain is a stub.