It had been a mystery for a long time, but now it is clear: King Charles III. (75) will take part in the traditional Easter Sunday service in St. George’s Chapel at Windsor Castle despite his cancer treatment. Buckingham Palace confirmed this on Tuesday, according to the Daily Mail. Queen Camilla (76) will accompany her husband.

Royal advisors are also said to have announced in the morning that the royal couple would be “accompanied by other members of the royal family”. However, heir to the throne Prince William (41) and his wife Kate (42) would not take part in the service, wrote the Daily Mail. The princess made her cancer public on March 22nd. It was originally said that she would return to her royal duties from Easter. But given her chemotherapy, she probably won’t be back to appointments for a few weeks or even months.

The Daily Mail describes Charles’ decision to take part as “significant”. It is a good sign that the doctors advise him to do this despite his illness. The king has been undergoing treatment since early February for an undisclosed form of cancer that was discovered during his operation for an enlarged prostate. His daughter-in-law Kate also underwent surgery in mid-January. She then received the cancer diagnosis. Since then, Prince William has also stepped down to support his wife and look after their three children. He should take on public duties again after the end of the Easter holidays.