 Complete the following phrase:  After Powhatans death, the chiefdom passed to his brother Opitchapan. His succession was brief and the chiefdom passed to Opechancanough. It was Opecancanough who planned a coordinated attack on the English settlements, beginning on March 22, 1622. He wanted to punish English encroachments on Indian lands and hoped to run the colonists off entirely. His warriors killed about 350-400 settlers up to one-third of the estimated total population of about 1,200, during the attack. The colonists called it the 