From the Wikipedia page 
Gironde (French pronunciation: [ʒiʁɔ̃d]; in Occitan Gironda) is a department in the Nouvelle-Aquitaine region of southwest France. It is named for the Gironde estuary, a major waterway. The Bordeaux wine region is in the Gironde.
Gironde is one of the original 83 departments created during the French Revolution on 4 March 1790. It was created from parts of the former provinces of Guyenne and Gascony.
From 1793 to 1795, the department's name was changed to Bec-d'Ambès to avoid the association with the revolutionary party, the Girondists.
Gironde is part of the current region of Nouvelle-Aquitaine and is surrounded by the departments of Landes, Lot-et-Garonne, Dordogne and Charente-Maritime and the Atlantic Ocean on the west. With an area of 10,000 km², Gironde is the largest department in metropolitan France.