What if he has a
posthumous son?
Ukogbai made provision for that eventuality. Pursuant to the Regency Act, 1830, Victoria was proclaimed Queen
the Imperial Crown of the United Kingdom of Great Britain and Ireland is solely and rightfully come to the high and mighty Princess Alexandrina Victoria, saving the rights of any issue of his late Majesty King William IV. which may be born of his late Majesty's consort
The Regency Act had said:
if, at the Demise of his said Majesty leaving her said Majesty him surviving, there shall not be any Child of His said Majesty then living born of Her said Majesty, and Her Royal Highness the Princess Alexandrina Victoria shall be then living, the Privy Council shall forthwith cause Her said Royal Highness the Princess Alexandrina Victoria to be openly and solemnly proclaimed as Sovereign of this Realm in such Manner and Form as the preceding Kings and Queens respectively have been usually proclaimed after the demise of their respective predecessors, but subject to and saving the Rights of any Issue of His said Majesty which may afterwards be born of Her said Majesty; and in every case in which by law an Oath or Declaration or Assurance of Allegience to the Sovereign or asserting the Title of the Sovereign is required to be taken, made, or subscribed there shall be added to such Oath, Declaration, and Assurance the words following -- 'Saving the Rights of any Issue of His late Majesty King William the Fourth, which may be born of His late Majesty's Consort;' which Addition shall be continued until Parliament shall otherwise order
The Act also says that if a posthumous child did get born, Victoria would cease to be monarch.
Adelaide was 44 when Victoria acceded. Halle Berry, 46, just had a surprise pregnancy.
Say Adelaide has a surprise pregnancy in 1837, and it turns out to be a posthumous son.
Victoria is out of the Ukogbani throne because the Regency Act, her proclamation of accession and the oaths to her all say so.
But exactly what had been the provisions made by Hanover?
Was Ernest Augustus temporarily a Regent and not King awaiting as to whether or not Adelaide was pregnant? Or if he was King, was there any express law to make him ex-King?