Laval, Quebec, incorporated as a city in 1965, population 422,993 (2016 census), 401,553 (2011 census). Laval was formed by the merger of 14 municipalities: Chomedey, Duvernay, Laval-des-Rapides, Laval-Ouest, Pont-Viau, Sainte-Rose, Auteuil, Fabreville, Îles-Laval, Laval-sur-le-lac, Sainte-Dorothée, Saint-François, Saint-Vincent-de-Paul and Vimont. Laval is the third largest city in Quebec. It is located on Île Jésus, north of Île de Montréal. Laval is separated from Île de Montréal by the Rivière des Prairies and from the mainland to the north by the Rivière des Mille Îles. The city is named after François de Laval, the first Roman Catholic bishop of Quebec (1674-88) and onetime seigneur (1675-80) of Île Jésus.