High Quality Content by WIKIPEDIA articles! Walter Butler, 11th Earl of Ormonde and 4th Earl of Ossory (1569 – 1632/3), was an Irish peer, the son of John Butler of Kilcash (who was the son of the 9th Earl) and of Lady Katherine MacCarthy, herself the daughter of Cormac na Haoine MacCarthy Reagh, 10th Prince of Carbery. He inherited the earldom because his uncle Thomas (Black Tom or Thomas Dubh) had died without legitimate male issue.