 henry pelham fiennes pelham-clinton, 5th duke of newcastle-under-lyne kg, pc (22 may 1811 â 18 october 1864), styled earl of lincoln before 1851, was a british politician. ==background== newcastle was the son of henry pelham-clinton, 4th duke of newcastle-under-lyne, by his wife georgina elizabeth, daughter of edward miller-mundy. he was educated at eton and christ church, oxford, where he took his b.a. degree in 1832, and was created a d.c.l. in 1863. ==political career== newcastle was returned to parliament for south nottinghamshire in 1832, a seat he held until 1846, and then represented falkirk burghs until 1851, when he succeeded his father in the dukedom. initially a tory, he served under sir robert peel as first commissioner of works from 1841 to 1846 and as chief secretary for ireland in 1846. he was admitted to the british privy council in 1841, and to the irish privy council on 14 february 1846.{
1811_births 1864_deaths British_Secretaries_of_State Clinton_family_(English_aristocracy) Dukes_of_Newcastle-under-Lyne Earls_of_Lincoln_(1572) English_Anglicans Knights_of_the_Garter Lord-Lieutenants_of_Nottinghamshire Members_of_the_Canterbury_Association Members_of_the_Parliament_of_the_United_Kingdom_for_English_constituencies Members_of_the_Parliament_of_the_United_Kingdom_for_Scottish_constituencies Members_of_the_Privy_Council_of_Ireland Members_of_the_Privy_Council_of_the_United_Kingdom People_educated_at_Eton_College UK_MPs_1832a35 UK_MPs_1835a37 UK_MPs_1837a41 UK_MPs_1841a47 UK_MPs_1847a52