The current church, constructed from the 11th to 12th centuries, was built in a combination of Romanesque and Angevin Gothic architectural styles.

[3][4] The remains of the saintly foundress were exhumed by order of Abbess Béliarde in 1012 for public veneration, and the entire church was rebuilt after a major fire in 1083.

The reconstruction expanded the structure, including both a chevet and the foundations of a bell tower when it was dedicated in 1099.

By this time, the chapel had become both a parish and collegiate church, staffed by a community of canons whose prior was appointed by the abbess.

[6] A series of 16 stained glass windows partially dating from the 13th century recounts the life of Radegund.