Winthrop, John (Fitz-John Winthrop), 1638–1707, American colonial governor of Connecticut, b. Ipswich, Mass.; son of John Winthrop (1606–76). He is commonly called Fitz-John Winthrop to distinguish him from his father and his grandfather. He left Harvard to serve in the English parliamentary army, returned to America in 1663, and served in King Philip's War (1675–76). He was a member of the council of Gov. Edmund Andros, but after the latter's overthrow he helped restore Connecticut's separate government. After serving as commander of the unsuccessful invasion (1690) of Canada in King William's War, he represented Connecticut in England from 1693 to 1697 and was elected governor in 1698. He served ably until his death.
See R. S. Dunn, Puritans and Yankees (1962, repr. 1971).