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

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. • 🇬🇧 United Kingdom: • * Princess Royal; since 1987. • * Duke of Albany • * Duke of Cambridge; since 2011: on occasion of the recipient's wedding • * Duke of Clarence • * Duke of Edinburgh; since 2023: on occasion of the recipient's birthday • * Duke of Gloucester • * Duke of Kent • * Duke of Lancaster • * Duke of Sussex; since 2018: on occasion of the recipient's wedding • * Duke of York; since 1986: on occasion of the recipient's wedding • * Duke of Windsor; on occasion of the recipient's abdication • * Earl of Forfar; since 2019: on occasion of the recipient's 55th birthday • * Earl of Wessex; since 1999: on occasion of the recipient's wedding 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.