The son of
The 1st Earl of Glengall and Emily Jefferys, on 17 July 1818, then-
Viscount Cahir was elected as the
Member of Parliament for
Tipperary. Seven months later he succeeded to his father's title and resigned his seat. On 20 February 1834, Lord Glengall married Margaret Lauretta Mellish, the daughter of
William Mellish, and together they had two daughters. Having no male issue, his titles (including the
Cahir Barony of 1583) became extinct upon his death in 1858. ==References==