Fort William Henry (Seven Years' War).
This fort, held by 2,200 British and Colonial troops under Colonel Monro, was besieged, August 4, 1757, by Montcalm, with 6,000 French and Canadians and 1,600 Indians. Montcalm's batteries opened on the 6th, and on the 9th, having lost 300 killed and wounded, and nearly all his guns being disabled, Monro surrendered. He was to be permitted to retire unmolested to Fort Edward, but the French were unable to control their Indian allies, who attacked the unarmed column as it retired. Before order was restored, some 50 had been killed, and 400 carried off prisoners by the Indians.