Battle of Seven Oaks between North West Company and Hudson's Bay Company, near Winnipeg, Manitoba, Canada.
The Battle of Seven Oaks was a violent confrontation in the Pemmican War between the Hudson's Bay Company (HBC) and the North West Company (NWC), rivals in the fur trade, that took place on 19 June 1816, the climax of a long dispute in western Canada. The Métis people fought for the North West Company, and they called it "the Victory of Frog Plain" (la Victoire de la Grenouillère).