Harriet Kavanagh Irish artist (1799–1885) Parents Henrietta Margaret Staples Richard Trench, 2nd Earl of Clancarty Children Thomas Kavanagh, The MacMorrough Harriet Margaret Kavanagh Charles Kavanagh, The MacMorrough Arthur MacMorrough Kavanagh Siblings Frederick Robert Le Poer Trench Lady Lucy Le Poer Trench Richard John Le Poer Trench Lady Frances Power Le Poer Trench unknown daughter Le Poer Trench Lady Louisa Augusta Anne Le Poer Trench William Trench, 3rd Earl of Clancarty Lady Emily Trench Partners Thomas Kavanagh