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]. The word earl comes from the old english word eorl, which means warrior or nobleman. earls typically hold land known as an earldom, but they may also hold other titles, such as baron or viscount.

Britain's peerage system, which dates to anglo-saxon times, consists of five ranks: Duke, marquess, earl, viscount and baron, according to debrett's, a leading source of information on the british …