Richard Handcock, 4th Baron Castlemaine (25 July 1826 – 26 April 1892),[1][unreliable source?]
[2] Born at Athlone, he was the oldest son of Richard Handcock, 3rd Baron Castlemaine and his wife Margaret Harris, daughter of Michael Harris.
[4] Handcock entered the British Army as ensign in 1844, was promoted to lieutenant two years later and served eventually as captain of the 41st (Welsh) Regiment of Foot from 1852.
[5] In 1874, he was elected an Irish representative peer to the House of Lords.
[3] Handcock died from heart disease at Moydrum Castle[3] and was succeeded in the barony successively by his second son Albert and his third son Robert.