In February, Charles confirmed that he was undergoing treatment for cancer after seeking treatment for an enlarged prostate. Westminster did not say what kind of cancer Charles has but did say it was not colon cancer.

Afterward, Charles said he would temporarily step away from public duty and allow his son William to take over some public-engagement roles while he was in treatment.

He has been making a few small engagements while in treatment, though his attendance at Easter church services will be his most noteworthy. In February, Charles met with Prime Minister Rishi Sunak, marking a return to some public duties.

Citing an unnamed source, People magazine reports that Charles is “progressing well” in his treatment.

Charles’ announcement that he would attend Easter Services comes shortly after another member of the royal family — his daughter-in-law Catherine, princess of Wales — announced Friday that she is undergoing cancer treatment.

After Princess Kate’s diagnosis, King Charles said he was “so proud of Catherine for her courage in speaking as she did.”

Catherine is not expected to be in attendance at the Easter services, though other members of the royal family are expected to attend, including Queen Camilla.

On Tuesday, Charles met with Windsor Leadership Trust Alumni at Buckingham Palace.

“The king heard about their involvement in The Faith Leader’s Forum, where they had an opportunity to share their experiences of leading in their communities at a time of heightened international tensions,” the official X account of the Royal Family posted Tuesday.

The royal family’s attendance at Easter church services is a longstanding tradition in the United Kingdom and typically involves a large number of family members, but officials said this year’s event will attract a smaller group as Charles tries to limit the number of people with whom he has contact while undergoing his cancer treatment.