Montreuil (often referred to as Montreuil-sur-Mer) is a sous-préfecture of northern France, in the département of Pas-de-Calais. It is located on the Canche river, not far from Étaples. The Mer (French for "Sea"), however, is now some distance away.
It is surrounded by medieval ramparts, part of the reinforcement work of the famed French military engineer Vauban
from his fortification of Northern France in the 17th Century.
Population (1999): 2,688 inhabitants for the city, 21,603 inhabitants for the canton and 99,288 inhabitants for the arrondissement.
Montreuil was the setting for much of the early part of Victor Hugo
's novel Les Misérables
. The novel's protagonist, Jean Valjean
, served as mayor of the city, and also owned a large factory. The city was the setting for much of the early conflict between Valjean and the novel's antagonist
. It was also Fantine
The city is twinned with Slough