Brother of the ninth Duke of Devonshire, educated at Trinity College, Cambridge, and a Liberal; was made Chief-Secretary for Ireland in 1882, but chancing to walk home one evening through the Phoenix Park, he fell a victim, stabbed to the heart, of a conspiracy that was aimed at Mr. Burke, an unpopular subordinate, who was walking along with him, and came to the same fate. Eight months after, 20 men were arrested as concerned in the murder, when one of the 20 informed; five of them were hanged; the informer Carey was afterwards murdered, and his murderer, O'Donnel, hanged (1836-1882).