Editing Duke of Newcastle (section)

=== Third creation (1715) and Newcastle-under-Lyne (1756) ===
[[File:1stDukeOfNewcastleOld.jpg|thumb|[[Thomas Pelham-Holles, 1st Duke of Newcastle]] and [[Prime Minister of Great Britain]]]]
The Duke's sister, Lady Grace Holles (died 1700), married [[Thomas Pelham, 1st Baron Pelham]] (see [[Earl of Chichester]] for earlier history of the Pelham family). Their elder son [[Thomas Pelham-Holles, 1st Duke of Newcastle|Thomas]], upon his uncle's death in 1711, succeeded to the substantial Holles estates and assumed by Royal Licence the additional [[surname]] and [[coat of arms|arms]] of Holles. In 1714, the earldom of Clare was revived when he was created '''Viscount Haughton''' and '''Earl of Clare''', with remainder to his younger brother [[Henry Pelham]]. The following year, the dukedom was revived when he was made '''Marquess of Clare''' and '''Duke of Newcastle upon Tyne''', with like [[Remainder (law)#Special remainder in peerages|special remainder]]. These titles were in the [[Peerage of Great Britain]]. In 1756, when his brother died without male issue and it was evident that the Duke would have no children, the Duke of Newcastle upon Tyne was additionally created '''Duke of Newcastle-under-Lyne'''{{sic}} with a different special remainder: to his nephew-by-marriage [[Henry Pelham-Clinton, 2nd Duke of Newcastle|Henry Clinton, 9th Earl of Lincoln]], who rapidly took on the additional surname Pelham. (For the history of this title from the 1768 inheritance upon the 1st Duke's death, see [[Earl of Lincoln]].) The 1st Duke's other titles became extinct, except for the Pelham [[baronetcy]] (of Laughton) and the [[baron]]y of Pelham (of Stanmer), which devolved to his first cousin once-removed, [[Thomas Pelham, 1st Earl of Chichester|Thomas Pelham]]. (For the history of these titles, see [[Earl of Chichester]].)

Extensive personal, transaction and estate papers of the dukes are held in the [[Duke of Portland|Portland]] ([[Welbeck Abbey|Welbeck]]) and [[Earl of Lincoln|Newcastle]] ([[Clumber Park|Clumber]]) collections at the [[University of Nottingham]]'s [[Manuscripts and Special Collections, The University of Nottingham|Department of Manuscripts and Special Collections]].