Saint-Malo traces its origins to a monastic settlement founded by Saint Aaron and Saint Brendan early in the sixth century. Retrieved December 11, 2014. See the remains of the cathedral and the wwii memorial museum built into the air defence bunkers dating from the occupation. During the decline of the Western Roman Empire Armorica (modern day Brittany) rebelled from Roman rule under the Bagaudae and in the 5th and 6th centuries received many Celtic Britons fleeing instability across the Channel. See also edit References edit a b Hince, Bernadette (2001). Portsmouth, Weymouth, and, poole. Commemoration of the Cartier expedition in the floor of the cathedral. Address : Tour Solidor Saint Servan Saint-Malo. Saint-Malo also holds many cultural and sporting events such as La Route du Rhum yacht race and the Tall Ships Race as well as the Etonnants Voyageurs and Quai des Bulles literary festivals.