Sorry for my next two stupid questions:
1. The further children of the Duke and Duchess of Cambridge will be styled as HRH Prince/ss of Cambridge?
2. Does in the United Kingdom a male pendant to Queen Mother exist? If HM Queen Elizabeth dies and is survived by her husband, will The Duke of Edinburgh be "King Father"?
Thank you!
Your questions are in no way stupid; this forum is to share opinions and knowledge.
1. If Prince William's children are
born during the lifetime of Queen Elizabeth, then only the eldest son will automatically be a Royal Highness and a Prince.
According to Letters Patent 1917, the title of a Prince/Princess and the style of Royal Highness is limited to male-line grandchildren of the Monarch, and
the eldest son of the eldest son of the Prince of Wales. Thus, Prince William's eldest son will be automatically be a Prince and a Royal Highness, whereas the younger children will be styled as younger children of a Duke - Lords and Ladies.
However, it is extremely likely that as soon as the Duchess of Cambridge's first pregnancy is announced, the Queen will issue Letters Patent granting all future children of the couple the style of Royal Highness and title of Princes and Princesses. It was done before; when Prince Charles and Princess Anne were born, they were not entitled to the style of Royal Highness, or title of a Prince and Princess (since they were only female-line grandchildren of the Monarch); to avoid any unnecessary complication, George VI issued Letters Patent granting any children of Princess Elizabeth and the Duke of Edinburgh those styles and titles.
If William's children are
born during the reign of King Charles, they will be Princes and Princesses of the United Kingdom with the style of Royal Highnesses as male-line grandchildren of the Monarch. The same goes for Prince Harry's children.
2. The title "King Father" doesn't exist in the United Kingdom, or any of the European Monarchies.
If the Duke outlives the Queen, his styles and titles will remain exactly the same as they are now -
His Royal Highness The Prince Philip, Duke of Edinburgh. His styles and titles are are independent of his wives and not connected to her life or reign. During the reign of King Charles, he will be the king's father, but not the King Father since the title never existed. Whereas different types of Queens exist (Queen Regnant, Queen Consort, Queen Mother, Queen Dowager), in the United Kingdom, the title "King" can
only belong to the Monarch - and no one else. Prince Philip isn't the Monarch - just the Monarch's consort; as such he cannot bear the title in any shape or form.