Deux-Sèvres is a French department. Deux-Sèvres literally means "two Sèvres": the Sèvre Nantaise and the Sèvre Niortaise are two rivers which have their sources in the department. It had a population of 374,878 in 2019.

Maine-et-Loire is a department in the Loire Valley in the Pays de la Loire region in Western France. It is named after the two rivers, Maine and the Loire. It borders Mayenne and Sarthe to the north, Loire-Atlantique to the west, Indre-et-Loire to the east, Vienne and Deux-Sèvres to the south, Vendée to the south-west, and Ille-et-Vilaine to the north-west. It also borders Ille-et-Vilaine in the north for just 20 yards (19 m), France's shortest department boundary. Its prefecture is Angers; its subprefectures are Cholet, Saumur and Segré-en-Anjou Bleu. Maine-et-Loire had a population of 818,273 in 2019.