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