Closed to the general public
Built in late Romanesque style at the end of the 12th century, this church stands outside the walls opposite the keep. It now belongs to the Franciscan Nuns of the Conception.
Positioned in accordance with liturgy and built in Caleno granite, it has conserved the west and north entrances and apse from the original church. Interestingly, the apse has two levels with their corresponding animal-form corbels. The west front is of particular interest, with its decreasing semi-circular arch and five archivolts set on columns whose capitals are decorated with leaves, cockerels and other birds. A Baroque-style steeple stands to the west of the building.
The interior has three naves separated by large, robust lowered formerets from the 16th century.