King Charles's sense of 'duty' laid bare by expert as he heads back to work for first time

King Charles's return to public duty "demonstrates how strong-willed he is" to carry out his duty, claims a broadcasting legend. British presenter and broadcaster, Jonathan Dimbleby, spoke to Sky News, about the "resilience" shown by the reigning monarch, who is expected to visit a hospital and specialist cancer centre on Tuesday.

Mr Dimbleby told the news channel: "I see no more appropriate place for him to go... I am bowled over by his resilience, his energy and his urge to get on."

He added: "It is horrible to have a cancer diagnosis. I know from personal life experience of those I've loved. But in King Charles, it shows how strong-willed he is to do his duty and how much he wants to do his duty as King."

The King and Queen will meet medical specialists and patients during the visit in a bid to further raise awareness of the importance of an early diagnosis.

Speaking of his relationship with the King, the broadcasting legend added: "He's missed some of the things he would have liked to have done and he is very determined. It is fantastically good news that he is doing so well."

The visit will be the 75-year-old's first public engagement since his cancer diagnosis, and follows a statement issued by Buckingham Palace in which the King was said to be making positive progress.

The Palace added that his medical team is "very encouraged by the progress made so far" and remains "positive about the King’s continued recovery".

For decades, Charles has taken a specific interest in the treatment of cancer and he now intends to bring his campaigning zeal to highlight the battle to find a cure for what he once called this "beastly disease".

Charles’s visit on Tuesday to the hospital will mark the start of a busier schedule this summer.

But his treatment programme will continue, with a Buckingham Palace spokesman saying: "Doctors are sufficiently pleased with the progress made so far that the King is now able to resume a number of public-facing duties. Forthcoming engagements will be adapted where necessary to minimise any risks to His Majesty’s continued recovery."

He will not participate in a full summer programme but will undertake engagements subject to doctors’ advice and appropriate adaptations in place.

Aides are planning for the King to attend key events such as Trooping the Colour, D-Day commemorations, garden parties and Royal Ascot, though the Palace said "nothing can be confirmed or guaranteed at this stage".