Answer:
Im pretty sure it's congress :)
Leaders--they with commissioners for NE created a treaty and therefore the sagamores are spokespersons or leaders of the tribes.
Sagamores of the tribes were meeting with NE leadership to create a treaty. Only leadership would be recognized for the treaty process. The sagamores were either leaders of the tribes or acting as diplomats to complete the treaty process.
Listen carefully to them and ask for help if you need to.
Jamestown was originally governed by a governor whose council was appointed by the Virginia Company. The Virginia Company refers collectively to two joint stock companies chartered by James I on 10 April 1606 with the purposes of establishing settlements on the coast of North America.