Sir Isaac Brock was a British Army soldier. He was assigned to Canada in 1802 and commanded his regiment in Upper Canada (present-day Ontario).
Brock was born at St Peter Port on the Channel Island of Guernsey, the eighth son of John Brock, a midshipman in the Royal Navy, and Elizabeth de Lisle, daughter of Daniel de Lisle, then Lieutenant-Bailiff of Guernsey.
At age ten, he was sent to school in Southampton but spent one year in Rotterdam learning French.
In 1785 he entered the army. In 1797 he became a lieutenant colonel and saw service in Holland in 1799 and at Copenhagen in 1801. He took his regiment to Canada in 1802, and in 1810 was given command of the troops in Upper Canada, being promoted to the rank of major general in 1811. In July 1812 he drove back the American general William Hull, who had invaded Canada, and on Aug. 18 received the surrender of Detroit together with Hull's entire army. During an American attack on Queenston, Ont., near Niagara Falls, Oct. 13, 1812, Brock was killed; a tall column on Queenston Heights commemorates his death.