James Bartholomew Radclyffe, 4th Earl of Newburgh

James Bartholomew Radclyffe, 4th Earl of Newburgh and titular 6th Earl of Derwentwater (23 August 1725 – 2 January 1787) was a British nobleman, Earl of Newburgh in the Peerage of Scotland and titular Earl of Derwentwater in the Peerage of England.