The outnumbered British regulars and militia were forced to fall back. The Lieutenant Governor of Upper Canada, Major General Roger Hale Sheaffe, ordered his regulars to retreat to Kingston, but also dispatched Captain Francis Tito LeLièvre (1794-1830) of the Royal Newfoundland Regiment to set fire to Sir Isaac Brock to prevent her falling intact into enemy hands.
The British troops and militia were outnumbered and forced to retreat. Lieutenant Governor Sheaffe ordered his regulars to retreat to Kingston, but also sent Captain LeLièvre to burn Sir Isaac Brock to prevent the fort from falling into enemy hands.