King Charles smiles and waves at Sandringham as William ‘upset’ with Harry

The King has attended church with the Queen in his first public outing since the announcement of his cancer diagnosis.

Walking alongside Camilla and holding an umbrella, Charles arrived at St Mary Magdalene Church in Sandringham, Norfolk, on Sunday morning.

It comes after Buckingham Palace said the King, who acceded to the throne 17 months ago, has a “form of cancer”.

He was diagnosed after a “separate issue of concern was noted” and was investigated while he was being treated for a benign enlarged prostate.

The 75-year-old King was last seen on Tuesday as he left Clarence House the day after starting his treatment, following a brief reunion with the Duke of Sussex.

Charles has postponed all public-facing duties, but is continuing with behind-the-scenes work on his red boxes of state papers.

On Saturday the King thanked people for their “many messages of support and good wishes” and said it was “equally heartening” to hear how sharing his diagnosis has helped to promote public understanding of cancer.

Prince William is “upset” with his brother after Prince Harry’s brief visit to see their father following the King’s shock cancer diagnosis.

The Duke of Sussex dashed to the UK to reunite with his father after Charles’ health announcement – but Harry reportedly spent less than an hour with the 75-year-old monarch before returning home to California the next day, having had no contact with his estranged sibling.

Ingrid Seward, editor-in-chief of Majesty Magazine, told The Sun: “William would be upset that Harry yet again has chosen to make this visit to see his father a PR opportunity.”

King Charles encouraged Prince William to enjoy time with his family before assuming the role of king, according to a royal author.

Ingrid Seward, the author of My Mother And I, claims: “I remember Charles said that he was determined that William should enjoy his family before he took on too much royal work.

“He feels that’s the least William should have – he’s got to be able to enjoy his family before he’s thrown into this role.”

“I think Charles said to William: ‘Look after your wife, first and foremost. She’s very important to you’.”

In the decades spent waiting to ascend to the throne, King Charles has always ensured he maintained a strict diet and rigid daily exercise routine.

After receiving his first cancer treatment, King Charles III has taken up residence at Sandringham House, which is located along the North Sea coast of eastern England.

Earlier this week, the King was flown by helicopter to Sandringham, after appearing in good spirits as he smiled and waved to the gathered crowds as he left Clarence House in central London. He is understood to have boarded a helicopter with wife Queen Camilla from Buckingham Palace.

Prince Harry saw his cancer-stricken father King Charles for only 30 minutes “to keep stress levels down”, suggests royal expert Robert Jobson.

“You don’t want his blood pressure going up. The King’s not very well, whatever type of cancer it is, he’s undergoing treatment,” he told The Sun on Sunday.

“After the initial kiss and hug, love you dad, hope you get better soon, what issues are going to get raised? Things that will get your blood pressure rising.”

Robert said: “I would think he will stay at Sandringham House until they shut it down and they he may go to Wood Farm.

“When the late Queen was very sick she went to Wood Farm. It’s also where Prince Philip lived after his retirement.

“It’s a very relaxing place and he can be there with just a couple of servants and just really chill out.”

After somewhat of a public reckoning with an advanced stage of prostate cancer, which forced me to miss Duran’s induction into The Rock & Roll Hall of Fame in November 2022, my dear friend, the music executive Merck Mercuriadis, said to me: “Try not to worry, you’ll feel differently once it’s public, your world won’t seem such a lonely place, people really do care.” He was right.

I vividly remember the day – five and a half years ago – when the results of my biopsy were revealed to me. The news was not good, within a millisecond our world turned upside down, not unlike when my father first told me of his cancer diagnosis. I could barely speak and he died aged just 67 in 2005.

Buckingham Palace has hit out at ‘intrusive and insensitive’ books about the King’s cancer, claimed to have been written by artificial intelligence.

The palace said its legal team was investigating a report that a number of books are being sold on Amazon with false claims about Charles’ illness.

It comes as the King, who has not revealed the type of cancer he has been diagnosed with, issued his first public statement on Saturday evening, thanking the public for its support.