By Sean Coughlan
Royal correspondent
Prince William has unexpectedly pulled out of attending the memorial service for the late King Constantine of Greece, where he was due to give a reading.
Kensington Palace said this was because of a “personal matter”.
Queen Camilla will lead members of the Royal Family at the service at St George’s Chapel in Windsor Castle.
The King, who is being treated for cancer, will also be unable to attend the service.
There are no further details of the “personal matter”.
However, it is understood that Prince William’s wife Catherine is continuing to do well with her recovery from abdominal surgery, which was carried out last month.
Prince William called the Greek royal family this morning to say he wouldn’t be able to join them.
The service remembers King Constantine, William’s godfather, who died last year.