EN
John Pratt, 1st Marquess Camden First Marquis of Camden John Jeffreys Pratt John Jeffreys Pratt, 1st Marquess, 2nd Earl Camden, Earl of the County of Brecknock, Viscount Bayham of Bayham Abbey, Baron Camden of Camden Place Camden John Jeffreys Pratt, 1st Marquess Camden
EN
John Jeffreys Pratt, 1st Marquess Camden,, styled Viscount Bayham from 1786 to 1794 and known as The 2nd Earl Camden from 1794 to 1812, was a British politician.
Wikipedia