Native Indian Wampanoag Tribe Reclaims Burial Site: Massasoit, Wampanoag Chief, To Be Reburied Medicine & Technology Apr 18, 2017 Wampanoag Chief, Massasoit’s first meeting with Mayfair pilgrims at Plymouth Colony. The chief took an unprecedented step in signing a treaty with the pilgrims in 1621 that he supported until his death.