Listed on the Historical Monuments, the chapel was founded in the fiftteenth century by Bertrand de Quifistre, Lord Trémohar, owner of the nearby castle with the same name. It has beautiful wall paintings from the sixteenth century. https://www.rochefortenterre-tourisme.bzh/ln/en/discover/heritage-museums/built-heritage/?tif_r=38ea6a64-1640-4b26-82ca-a880d4e0b6c1&Chapelle-Notre-Dame-de-Bon-Secours