Born into an Ulster-Scots aristocratic family in London, he was the son of The 2nd Earl of Caledon and Lady Catherine Yorke.
He was appointed High Sheriff of Armagh in 1836[1] and was Member of Parliament for Tyrone between 1837 and 1839.
He gained the rank of captain in the Coldstream Guards and was Colonel of the Royal Tyrone Militia from 1 May 1839 (in succession to his father) until his death.
[2][3] On 4 September 1845 at St. Michael's, St. Albans, Hertfordshire, he married Lady Jane Frederica Harriot Mary Grimston, daughter of James Walter Grimston, 1st Earl of Verulam and Lady Charlotte Jenkinson.
Together, they were the parents of the following children: Lord Caledon died at the age of 42 at his house in Carlton House Terrace, London, on 30 June 1855 and was buried at Caledon in County Tyrone, Ireland.