

Dating from 1377, the wall consists of a rubble wall masonry, thick two meters. It overlooks the town square that bears its name. His face is pierced with eight narrow loopholes. During the sixteenth century wars of religion. Many changes were made to the ramparts of Grambois. However, these precautions did not prevent the Savoy army to seize and put in Grambois bag in December 1590.