. Lord Abercorn was first appointed a
deputy lieutenant of
County Tyrone, where he had a family seat at
Baronscourt. On 13 November 1844, Lord Abercorn was appointed
Lord Lieutenant of Donegal. The next month, on 12 December 1844, he was made a
Knight of the Garter at the relatively young age of 33. Abercorn was appointed
Groom of the Stole to
Prince Albert on 8 February 1846, and shortly thereafter, on 25 February 1846, was made a
Privy Counsellor. He served as Groom of the Stole until June 1859, and remained a prominent figure in the royal court for the next two decades. He received two honorary degrees during this period, becoming an
LL.D. of Cambridge on 5 July 1847, a
DCL of Oxford on 4 June 1856. After the formation of the
second Disraeli ministry, Abercorn was again appointed Lord Lieutenant of Ireland on 2 March 1874, and was also chosen
Grand Master of the
Grand Lodge of Ireland, a post he held until his death. He resigned the Lord-Lieutenancy again on 6 December 1876, partly on account of his wife's ill health. Abercorn was Envoy-Extraordinary for the investiture of King
Umberto I of Italy with the Order of the Garter on 2 March 1878. He was elected
Chancellor of the
University of Ireland in 1881, and died four years later at his home of
Baronscourt,
County Tyrone on 31 October 1885. He is buried in the cemetery at Baronscourt Parish Church, the traditional burial place of the Dukes of Abercorn and their families. ==Sporting interests==