This church, dedicated to Saint Peter, is better kown under the name "L'église aux trois sanctuaires".

It was erected on the "Butte d'Isle-Aumont" a hill that in acient time may have been a fortified island in the swampy valley. A settlement already existed here in pre-Roman times. Within the 6th century a merovingian necropolis covered the hill. More than a thousand graves have been excavated some decades ago.