 In the 3rd and 4th centuries, like many other cities, Fanum Martis was renamed for its people, the Curiosolitae.This name change occurred as the Roman Empire weakened and paralleled a revival of the ancient Gallic gods in local religious sculptures and dedicatory inscriptions.Some 1.5 kilometres to the southeast, at Haut-Bécherel, stand the prominent remains of an extensive Roman temple sanctuary, built at the time of Nero and Vespasian.