BRETIGNY, French hamlet (dept. Eure-et-Loir, arrondisse ment and canton of Chartres, commune of Sours), which gave its name of a treaty concluded there on May 8, 1360, between Edward III. of England and John II. of France. Edward III. ob tained, besides Guienne and Gascony, Poitou, Saintonge and Aunis, Agenais, Perigord, Limousin, Quercy, Bigorre, the countship of Gaure, Angoumois, Rouergue, Montreuil-sur-mer, Ponthieu, Calais, Sangatte, Ham and the countship of Guines, John II. had, moreover, to pay 3,000,00o gold crowns for his ransom. On his side the king of England gave up the duchies of Normandy and Touraine, the countships of Anjou and Maine, and the suzerainty of Brittany and of Flanders. The treaty should more properly be called the treaty of Calais, since it was ratified there on Oct. 24, when an important clause in the treaty of Bretigny was omitted.