PELHAM-HOLLES, THOMAS, 1ST DUKE OF NEWCASTLE (cr. 1715 and 1756), elder son of Thomas Pelham, 1st Baron Pelham, and his second wife Lady Grace Holles, youngest dau. of Gilbert Holles, 3rd Earl of Clare, and sister of John Holles, 1st Duke of Newcastle; b. 21 Jul 1693; at school under Knipe (Steward, Anniversary Dinner 1728/9, 1756); Clare Hall, Cambridge, adm.nob. 9 Mar 1709/10; LLD 25 Apr 1728; succeeded to estates of his uncle, John, Duke of Newcastle, in Jul 1711, and assumed additional surname of Holles; succ. father as 2nd Baron Pelham 23 Feb 1711/2; created Earl of Clare 19 Oct 1714; Lord Lieut., Middlesex 28 Oct 1714 – 2 Feb 1763, and of Nottinghamshire 28 Oct 1714 – 15 Jan 1763 and from 12 Sep 1765; with his brother Henry Pelham (qv) raised a troop for service against the Pretender in 1715; created Duke of Newcastle-upon-Tyne 11 Aug 1715; Lord Chamberlain of the Household 4 Apr 1717 – May 1724; Privy Councillor 16 Apr 1717; KG 30 Apr 1718; Secretary of State for the Southern Dept. 2 Apr 1724 – Feb 1747/8; joint Secretary of State for Scotland 25 Aug 1725 – 15 May 1730; managed the negotiations which led to the formation of Lord Wilmington’s administration on Walpole’s downfall, while retaining his own post; opposed policy of Carteret and succeeded in obtaining his dismissal from the cabinet; forced George II to accept Pitt as a minister 1746; Secretary of State for the Northern Dept. Feb 1747/8 – Mar 1754; First Lord of the Treasury 6 Mar 1754 – 11 Nov 1756; created Duke of Newcastle-under-Lyme 13 Nov 1756 (with special remainder to Earl of Lincoln); formed a coalition with Pitt and was again First Lord of the Treasury Jun 1757 – 26 May 1762; Lord Lieut., Sussex 4 Jul 1761 – 15 Jan 1763; created Baron Pelham of Stanmer 4 May 1762 (with special remainder to Thomas Pelham, afterwards 1st Earl of Chichester (qv)); on his leaving office in May 1762 he and his principal political followers were deprived of their remaining official positions; Lord Privy Seal 25 Aug 1765 – Jul 1766; High Steward, Cambridge University Jul 1737 – Dec 1748, Chancellor from 14 Dec 1748; FRS 26 Dec 1749; Busby Trustee 30 Mar 1732; gave £100 towards building of New Dormitory; m. 2 Apr 1717 Lady Henrietta Godolphin, eldest dau. of Francis Godolphin, 2nd Earl of Godolphin; d. 17 Nov 1768. DNB.