a sachem of the Mohegans who made the Mohegans the leading regional Indian tribe in lower Connecticut, through his alliance with the English colonists in New England against other Indian tribes. About 1635, Uncas developed relationships with important Englishmen in Connecticut. He was a trusted ally of Captain John Mason, a partnership which lasted three and a half decades and several family generations beyond. Uncas sent word to Jonathan Brewster that Sassacus was planning to attack the English on the Connecticut river. Brewster described Uncas as being "faithful to the English".
