Red Jacket was a Seneca orator and chief of the Wolf clan, based in Western New York. He and the Mohawk chief Joseph Brant became bitter enemies and rivals before the American Revolutionary War, although they often met together at the Iroquois Confederacy's Longhouse. During the war, when most of both the Seneca and Mohawk were allies of the British, Brant contemptuously referred to Red Jacket as "cow killer". He alleged that at the Battle of Newtown in 1779, Red Jacket killed a cow and used the blood as evidence to claim he had killed an American rebel. Red Jacket became famous as an orator, speaking for the rights of his people. His language was beautiful and figurative, and delivered with the greatest ease and fluency. After the war, he played a prominent role in negotiations with the new United States federal government. In 1792 he led a delegation of 50 Native American leaders to Philadelphia. The US president George Washington presented him with a special "peace medal", a large oval of silverplate engraved with an image of Washington on the right-hand side shaking Red Jacket's hand; below was inscribed "George Washington", "Red Jacket", and "1792".