Barons Decies (1812) William Beresford, 1st Baron Decies (1743-1819) John Horsley-Beresford, 2nd Baron Decies (1773-1855) William Robert John Horsley-Beresford, 3rd Baron Decies (1811-1893) William Marcus de la Poer Beresford, 4th Baron Dunsany (1865-1910) John Graham Hope de la Poer Beresford, 5th Baron Dunsany (1866-1944) Arthur George Marcus Douglas de la Poer Beresford, 6th Baron Dunsany (1915-1992) Marcus Hugh Tristram de la Poer Beresford, 7th Baron Dunsany (b. 1948)
