Cornplanter, c.1740�?836, chief of the Seneca. The son of a Native American mother and a white father, he acquired great influence among the Seneca and in the American Revolution led war parties for the British against the colonial forces, particularly against Gen. John Sullivan in New York. He later favored friendship with the whites and signed the Treaty of Fort Stanwix (1784). He was given a grant of land on the Allegheny River, where he lived to a very old age. His views were opposed by the energetic Red Jacket but supported by Handsome Lake (Cornplanter's half brother).