Prince William, Prince of Wales, is next in line and will succeed King Charles III under the current rules of succession to the British throne.

Who is legally next?

Under UK law and established royal succession rules, the crown passes automatically to the monarch’s eldest legitimate child when they die or abdicate. For King Charles III, that heir is his elder son, Prince William, the Prince of Wales. No special vote or public decision is needed; the succession happens instantly at the moment the throne becomes vacant.

The next few in line

After Prince William, the line continues through his children in order of birth.

  • 2nd in line: Prince George of Wales, William and Catherine’s eldest son.
  • 3rd in line: Princess Charlotte of Wales.
  • 4th in line: Prince Louis of Wales.
  • 5th in line: Prince Harry, Duke of Sussex.

These positions are set by law and can only be changed by Parliament-backed legislation, not by private royal preference alone.

Small HTML table of key heirs

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Position Royal Relationship to King Charles III
1st in line Prince William, Prince of WalesElder son of King Charles III
2nd in line Prince George of WalesGrandson (William’s eldest child)
3rd in line Princess Charlotte of WalesGranddaughter (William’s second child)
4th in line Prince Louis of WalesGrandson (William’s third child)
5th in line Prince Harry, Duke of SussexYounger son of King Charles III

Could anyone else “jump” the line?

Public speculation and some online “forum discussion” often imagine scenarios where another royal, such as Prince Harry or even one of William’s younger children, might unexpectedly take the throne. In reality, this would require extremely unusual circumstances or a change in the law, so under present rules the answer to “who will succeed King Charles” remains Prince William, barring something extraordinary.

Information gathered from public forums or data available on the internet and portrayed here.