The Magenis (or Maginnis) family claimed to be a sub-branch of the extinct lords of Iveagh (Viscounts Magenis). Richard Magenis senior, who married the sister of the philosopher Dr. George Berkeley, bishop of Cloyne, was Member for Bangor, 1783-90, Fore, 1794-7, and Carlingford, 1798-1800, and left his Down and Antrim estates to his elder son and namesake in his will, which was proved in 1807.
Returned unopposed at the general elections of 1818, 1820 and 1826, Magenis made no reported speeches in this period. No trace of parliamentary activity has been found for the 1820 session, and he missed the division on ministers’ conduct towards Queen Caroline, 6 Feb. 1821, perhaps under pressure from his patron, who had temporarily broken with them on this issue. However, he was probably the ‘McKinnies’ who (like his brother-in-law Sir Galbraith Lowry Cole) was described by Lord Lowther* as one of the remarkable ‘deserters’ from government on the failed opposition motion for reinstating Caroline’s name in the liturgy, 26 Jan.
Magenis vacated his seat at the start of the 1828 session to accommodate another of his wife’s brothers, Arthur Henry Cole, and he never returned to the Commons, although he was considered as a possible stopgap candidate for Antrim on the Hertford interest in 1830.
