Murrough O'Brien, 1st Marquess of Thomond

He joined the Grenadier Guards and was an officer in Germany, where he carried colours at the Battle of Lauffeld in 1747.

Because of his support for the Act of Union of Great Britain and Ireland, on 29 December 1800 he was created Marquess of Thomond in the Peerage of Ireland, with a special remainder to his younger brother,[1] and Baron Thomond, of Taplow Court in the County of Buckingham in the Peerage of the United Kingdom on 2 October 1801 (which title allowed him to sit in the United Kingdom House of Lords), but this time with no special remainder.

Thomas lived with Inchiquin at Taplow Court after his return from India in July 1789, and lent the earl all the money he earned in a benefit concert in Calcutta.

In return, Inchiquin recommended Thomas to all his friends as a coal merchant; he had gone into that field after his marriage to Mary Wells in 1793 in order to support his growing family.

[citation needed] He died after a fall from his horse in Grosvenor Square, London on 10 February 1808.

Murrough O'Brien, 1st Marquess of Thomond KP, PC (1726–1808), 5th Earl of Inchiquin (1777–1800), wearing purple coat, white waistcoat, pale blue sash and breast star of the Order of Saint Patrick ( Henry Bone )
Mary, Countess of Inchiquin (1750–1820), by Thomas Lawrence