An ancient province of France, fronting the English Channel, NE. of Brittany; received its name from the Northmen who, under Rollo, established themselves there in the 10th century; was for a long time an appanage of the English crown after the Norman Conquest; after being taken and retaken, was finally lost to England in 1450; it became practically a part of France when it was taken by Philip Augustus in 1204; it is now represented by the five departments Seine-Inférieure, Eure, Orne, Calvados, and Manche.