GUIENNE, the largest province of France, bounded on the north by Saintogne, Angoumois, and Limosin; on the east by Limosin, Auvergne, and Languedoc; on the south by the Pyrenees, Lower Navarre, and Bearn; and on the west by the ocean. It is about 225 miles in length, and 200 in breadth. It is divided into the Upper and Lower. The Upper comprehends Querci, Rouergue, Armagnac, the territory of Comminges, and the county of Bigorre. The Lower contains Bourdelois, Perigord, Agenois, Condomois, Bazadois, the Lander, Proper Gascony, and the district of Labour. The principal rivers are, the Garonne, the Adour, the Tarn, the Aveyron, and the Lot. Bourdeaux is the capital town.