Asubstantive 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.[1]
United Kingdom – Prince of Wales (must be conferred by monarch) United Kingdom – Duke of Cornwall (restricted to eldest son of monarch) United Kingdom – Duke of Rothesay (restricted to eldest son of monarch)The Almanach de Gotha treated titles used by dynasties of abolished monarchies:[2] the head of the house bearing a traditional title of the dynasty in lieu of or after the given name.
United Kingdom:
In accordance with a tradition dating back to the reign of Napoleon I, titles in pretence were treated by the Almanach de Gotha as if still borne by members of reigning dynasties.[2]
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