Substantive title
A substantive title, in the United Kingdom, is a title of nobility which is owned in its own right, as opposed to titles shared among cadets, borne as a courtesy title by a peer's relatives, or acquired through marriage. == Current monarchies == United Kingdom – Prince of Wales (must be conferred by the monarch after merging in the Crown) United Kingdom – Duke of Cornwall (restricted to the eldest son of the monarch who is also heir apparent) United Kingdom – Duke of Rothesay (restricted to the eldest son of the monarch who is also heir apparent) == Granted titles == The Almanach de Gotha treated titles used by dynasties of abolished monarchies: the head of the house bearing a traditional title of the dynasty in lieu of or after the given name.