Massasoit Sachem or Ousamequin ( c. 1581 - 1661 ) , was the sachem , or leader , of the Wampanoag , and `` Massasoit '' of the Wampanoag Confederacy .
Massasoit ( c. 1581 - 1661 ) , was the Native American leader of the Wampanoag and `` Massasoit '' tribes .