What is "opchanacanough"

Opechancanough or Opchanacanough (1554–1646) was a tribal chief within the Powhatan Confederacy of what is now Virginia in the United States, and its paramount chief from sometime after 1618 until his death in 1646. His name meant "He whose Soul is White" in the Algonquian Powhatan language. He was the younger brother (or possibly half-brother) of Chief Powhatan, who had organized and dominated the Powhatan Confederacy.