Named after Saint Gangulphus (Gengoul in French), patron saint of Merl’s church.
Gangulphus was a Burgundian nobleman who died on 11 May 760; he was killed by his wife’s lover and is venerated as a martyr. Merl’s Catholic church, on the Rue de Merl, is dedicated to him and celebrates his feast on 11 May. The church was enlarged in 1882 and 1937, and its heaviest bell, 1,856 kg, is named Gangolf.