William Claiborne held prominent positions in the Virginia Colony, that is, Secretary of State, Commissioner of Parliament and Deputy-Governor. He was descended from the Cleburnes of Westmoreland in England. stoutly resisted the partisans of Baltimore when they sought to dispossess him of Kent Island. His brother married a daughter of Sir Richard Lowther, of Lowther of Westmoreland, and a member of that family is represented in the English peerage today by the Earls of Lonsdale. Claiborne, a wealthy planter, resided in Williamsburg. Source: William and Mary Quarterly, Vol. II, p. 234.