Aunis is a former province of France. It extended to Marais Poitevin in the north, Basse Saintonge (and Niortais) in the east, and Rochefortais in the south. Aunis had an influence approximately 20-25 km into the Isle of Ré (l'île de Ré). The Kingdom of France was organized into provinces until March 4, 1790, when the establishment of the département system superseded provinces. ... The Marais Poitevin is a marsh region in Western France, a remnant of the former Gulf of Poitou. ... The quays at Saint Martin en Ré. ÃŽle de Ré (formerly also ÃŽle de Rhé; in English Isle of Rhé) is an island off the west coast of France near La Rochelle, on the northern side of the Pertuis dAntioche strait. ...

Today, it is a part of the Charente-Maritime département along with Saintonge. Charente-Maritime is a département on the west coast of France named after the Charente River. ... The départements (or departments) are administrative units of France, roughly analogous to British counties. ...