Earl Scots or , Cornish . An earl has the title "Earl of [X]" when the title originates from a placename, or "Earl [X]" when the title comes from a surname. In either case, he is referred to as "Lord [X]", and his wife as "Lady [X]". A countess who holds an earldom in her own right also uses "Lady [X]", but her husband does not have a title (unless he has one in his own right). The eldest son of an earl, though not himself a peer, is entitled to use a courtesy title, usually the highest of his father's
Earl of Leicester The properties associated with the earldom became part of what was later called the Duchy of Lancaster. In 1564 the earldom was again created for Queen Elizabeth I's favourite, Robert Dudley. Since Dudley died without heirs, the title became extinct at his death. The title was again created in 1618 for Robert Sidney, his nephew. Along with the earldom Robert Sidney was granted the subsidiary title of Viscount Lisle on 4 May 1605. The Sidneys retained the titles until the death of the seventh Earl in 1743, when the titles again became extinct. The title of earl was then recreated