Clonony Castle is a Tudor castle built by the MacCoughlan clan, and ceded to Henry VIII by John Óg MacCoghlan, then to Thomas Boleyn when Henry wanted to marry his daughter Anne. Mary and Elizabeth Boleyn, second cousins to Queen Elizabeth I, lived out their lives in this castle and their tombstone still stands on the castle grounds. The grave was discovered in 1803, approximately 100 yards from the castle. The inscription on the eight feet by four feet, limestone flag reads: "Here under leys Elisabeth and Mary Bullyn, daughters of Thomas Bullyn, son of George Bullyn the son of George Bullyn Viscount Rochford son of Sir Thomas Bullyn Erle of Ormond and Willsheere.