Saint Michel de la Grêle Chapel dates back to the 17th century. It replaced the old Saint Michel Priory, which belonged to the Benedictine Abbey of Redon. Today, the chapel (renovated in the 20th century) is used to celebrate religious services on the feast day of Notre Dame de la Tronchaye (the Sunday following 15 August).
Take a few steps back and turn left after the tree-lined alley. Take one of the many small streets of Rochefort. Immediately after, turn left towards Place des Halles.