The London Gazette notice released for publication by Her Majesty's Stationary Office (HMSO) of the British Crown, Tuesday, 16 January 2007, based HRH Prince David's claim on his direct descent from the Stanley King's of Mann and rights to the incorporeal hereditaments to the independent Kingdom of Mann having laid unclaimed in abeyance. HRH Prince David's ancestry is the foundation for his claim in the notice.
Of minor importance to his claim are differing views by historians regarding the letters patent by Henry IV of England to Sir John Stanley (King John I) in 1405, and if a subsequent grant to the original was an entirely new grant, providing for succession of the Kingdom of Mann by future Stanley descendants, or an addendum to the original 1405 letters patent. Researchers working on HRH Prince David's behalf could find no clear consensus on these issues and as a result authorized his claim released by the HMSO for publication to bear the date of the earliest known grant establishing King John I's ownership of the Isle of Man.
The major aspect of HRH Prince David's claim, of which there is clear historical consensus, is that there were nearly 100 years, divided among four generations, of Royal House of Stanley, Kings of Mann. To wit, HRH is a direct descendant and this provided the foundation of his claim to the throne, Kingdom of Mann, as published by the HMSO in the London Gazette and passing undisputed and free of any counter-claims. The rights to hold and use of the title "King of Mann" or "King of the Isle of Man" affirmed by UK Barrister's Opinion, followed by HRH Prince David's coronation 30, March 2007.
