However, shortly thereafter Delaware came under British control in 1664. James I of England had granted Virginia 400 miles of Atlantic coast centered on Cape Comfort, extending west to the Pacific Ocean to a company of colonists in a series of charters from 1606 to 1611. This included a piece of the peninsula. The land was transferred from the Duke of York to William Penn in 1682 and was governed with Pennsylvania. The exact border was determined by the Chancery Court in 1735. In 1776, the counties of Kent, New Castle, and Sussex declared their independence from Pennsylvania and entered the United States as the state of Delaware.