Which British peer and politician born in 1734 was a great-grandson of the 1st Duke of Marlborough?
John Spencer, 1st Earl Spencer John Spencer, 1st Earl Spencer (19 December 1734 – 31 October 1783) was a British peer and politician.
John Middleton (British Army officer) Brigadier-General John Middleton (27 September 1678 – 4 May 1739) was a British politician. He served as a Member of Parliament (MP) from 1713 to 1739, although not continuously.