Which British peer and politician born in 1734 was a great-grandson of the 1st Duke of Marlborough?
Earl Spencer (peerage) Earl Spencer is a title in the Peerage of Great Britain that was created on 1 November 1765, along with the title Viscount Althorp, of Althorp in the County of Northampton, for John Spencer, 1st Viscount Spencer. He was a member of the prominent Spencer family and a great-grandson of the 1st Duke of Marlborough. Previously, he had been created Viscount Spencer, of Althorp in the County of Northampton, and Baron Spencer of Althorp, of Althorp in the County of Northampton, on 3 April 1761.
Peregrine Osborne, 2nd Duke of Leeds Vice-Admiral Peregrine Osborne, 2nd Duke of Leeds (1659 – 25 June 1729), styled Viscount Osborne between 1673 and 1689, Earl of Danby between 1689 and 1694 and Marquess of Carmarthen between 1694 and 1712, was an English Tory politician.