The King is “getting on” and “doing his best” following his three-night stay in hospital after treatment for an enlarged prostate, the Queen said on Wednesday.
Camilla, 76, was asked how King Charles was faring as she officially opened a new Maggie’s cancer support centre at the Royal Free Hospital in north west London.
On arrival, she was introduced to donors including Sir Gerald Ronson, who asked after the King’s health following his treatment for an enlarged prostate.
"He’s getting on, doing his best," she replied.
When Dori Dana-Haeri, who led the fundraising effort for the new centre, said she was “so pleased” Charles, 75, was well, the Queen nodded as she said: “Thank goodness.”
Meanwhile supporter Sir Michael Pakenham said, “All best wishes to His Majesty for the very best recovery.”
Camilla replied: "Thank you very much, that’s very kind. I’ll pass it on."
Camilla's visit to the Royal Free Hospital was ahead of World Cancer Day on Sunday.
The King was discharged from The London Clinic on Monday, waving as he left the private hospital with his wife at his side.
The Queen has been president of Maggie’s since 2008.
The engagement on Wednesday marked her 17th visit to a Maggie’s centre and her first as Queen.
"I try and get around them but every time, another one pops up so I never quite catch up," she joked.
Maggie’s Royal Free has been operating from an interim base inside the main hospital building since 2016.
Its new centre expects to receive more than 10,000 visits in its first year alone.
Among those on hand to greet the Queen was John Jencks, 45, the son of founder Maggie Keswick Jencks, who was diagnosed with breast cancer when she was 47 and wanted to use her experience to create a new type of cancer care.
She died in July 1995 and the first Maggie’s centre opened in Edinburgh the following year.
The Queen said the centres were “so special” as she thanked the staff for “everything they do.”
Asking one member of the clinical team if they had been there since the beginning, she added: “You get all the best people here.”
When one of the donors told the Queen he had met her once before at a Maggie’s centre, she said: “Which one? I’m losing track of my Maggie’s visits.”
Upstairs, Camilla met four cancer patients who are being supported by the centre, sitting down with them for a chat.
Billie Jean Daniels, 51, from Highgate, north London, was diagnosed with breast cancer in December 2022 and told the Queen she had discovered Maggie’s after undergoing chemotherapy.
She described the centre as her “little haven” and a “home from home.”
“It’s such an incredible place,” Camilla said. “You can literally come and chill, can’t you?”
Marilyn Bello, 51, from north London, was diagnosed with stage 4 lung cancer in 2020 and told the Queen she had been coming to Maggie’s during chemotherapy and had met many new friends, “people who understand you.”
She thanked her for her work but the Queen replied: “It’s not me you should be thanking.”
She added: “It’s nice that you can just drop in if you want to, you don’t have to make an appointment.”
Camilla also warmly greeted Viscountess Marcia Blakenham, a friend of Ms Keswick Jencks who has been involved with the charity ever since its inception.
The Viscountess said afterwards: “She’s been so wonderful for Maggie’s, she's very very good with people and has great empathy.
“She really believes in what Maggie’s does and understands that it’s about helping people going through very frightening things, people who are in a very, very unpleasant situation.”
Dame Laura Lee, chief executive of Maggie’s, briefly addressed the donors, members of staff and patients gathered for the official opening.
She told the Queen that her “empathy for those living with cancer, and the people who love them, was evident.”
Noting that Camilla had once said every city needed a Maggie’s, she told her: “We’re trying very hard to get there!”