Archdall, an army officer and placeman, followed his grandfather Nicholas Archdall (formerly Montgomery), 1731-60, and his father and namesake, 1761-1802, as Member for Fermanagh, where he was again returned unopposed on the family interest at the general election of 1820.
Archdall had been hesitant in giving his backing to Earl Belmore’s elder son, Lord Corry, at the Fermanagh by-election in 1823, but he offered his support to his other son, Henry Thomas Lowry Corry*, in Tyrone in 1825 and the following year to Corry, with whom he was returned at the general election of 1826, when nothing came of a rumoured challenge.
Despite feeling himself unequal to canvassing the county, Archdall offered again at the general election of 1830, when he and his colleague were challenged by their neighbour, Sir Henry Brooke, but, acclaimed for his consistently anti-Catholic conduct, he was returned in first place after a week’s poll. At his initiative, in September the country gentlemen met to promote a bill to establish turnpikes in the north of Ireland.
Archdall, who was returned for the tenth time for Fermanagh at the general election of 1832, resigned on account of ill health in May 1834.
