Brétigny is a village in the commune of Sours near Chartres, Eure-et-Loir department, France. It is notable as the place where the 1360 Treaty of Brétigny ending the first phase of the Hundred Years' War was signed.
Coordinates: 48°25′15.09″N 1°34′16.18″E / 48.4208583°N 1.5711611°E