Sassacus (Massachuset: Sassakusu (fierce), Born c. 1560 near present-day Groton – Died June 1637. Sassacus was a Pequot sachem. He became grand sachem after sachem Tatobem was killed in 1632. Sassacus and the Pequot were defeated by the English along with their Narragansett and Mohegan allies in the Pequot War. Sassacus fled to what he thought was safety among the Iroquois Mohawk in present-day New York, but they murdered him and sent his scalp to the English as a symbolic offering of friendship with the Connecticut Colony.