King Charles chuckles with joy as cancer-stricken monarch appears in high spirts at the Royal Windsor Horse Show

Despite his ongoing battle with cancer, King Charles appeared to be in high spirits as he attended the Royal Windsor Horse Show on Saturday.

Very much in his element in the grounds of Windsor Castle in Berkshire, the monarch, 76, looked dapper in a tweed suit with an emerald and navy tie.

With the help of a long walking cane, he took his seat in the stands to rapturous applause from the public.

Charles was kept entertained by the Royal Windsor Horse Show, often pointing towards the showgrounds and chuckling with joy.

Equally as enthralled by the prestigious event was his sister-in-law Sophie who threw her hands up in despair as she watched the action unfold, before bursting out into laughter after glancing over at the King.

The Duchess of Edinburgh, 60, who is becoming an increasingly prominent figure within the Royal Family, looked spectacular in a red wrap dress featuring a bold star print from the British fashion brand Ghost.

In her role as vice president of the five-day event, Sophie mingled with the King as well as other VIPs including Crown Prince Crown Prince and Prime Minister of Bahrain Salman bin Hamad Al Khalifa.

Founded in 1943 to help raise funds for the War effort, the Royal Windsor Horse Show is sentimental for the Royal Family as it was a firm favourite of the late Queen Elizabeth II.

The 76-year-old monarch could not contain his laughter during the Pony Club Mounted Games

The King, who has been undergoing treatment for cancer since last year, was welcomed by rapturous applause

Indeed Elizabeth made her last visit to the prestigious equestrian event in 2022 – just months before her death.

The beloved monarch would wander among the stalls wearing a headscarf and often entered homebred horses and ponies in classes at the show. 

But Charles was not the only royal to carry on his mother’s legacy at the Royal Windsor Horse Show on Saturday.

Her youngest son, Prince Edward, 61, also made an appearance at the prestigious equestrian event.

The Duke of Edinburgh opted for a relaxed look made up of blue slacks, a green tweed blazer, and a green tie. 

His daughter Lady Louise Windsor, 20, has previously competed in the horse show, prompting royal watchers to compare her to her grandmother.

Sadly Louise was not attendance this year as she is quietly studying for an English degree at the University of St Andrews in Scotland.

Photographed alongside the Duke of Edinburgh was the King who opted for a pair of tortoiseshell sunglasses to shade himself from the sun.

Clearly entertained by proceedings, King Charles chuckles with joy

The King covers his mouth with his hand to chuckle as the Duchess of Edinburgh glances over

Sophie, 60, who is becoming an increasingly prominent figure within the Royal Family, reacts to the Royal Windsor Horse Show

The Duchess is the vice-president of the five-day equestrian event

King Charles at the Household Cavalry Best Trooper presentation on Saturday

The King speaks to his sister-in-law Sophie, who is wearing a red wrap dress from Ghost London

Sophie takes a stroll with Salman bin Hamad bin Isa Al Khalifa of Bahrain during the Royal Windsor Horse Show

The Duke and Duchess of Edinburgh attend the prestigious event which was once a firm favourite of the late Queen Elizabeth II

King Charles and his brother Prince Edward dressed in tweed for the event held in the grounds of Windsor Castle

The royal brothers appear to be enthralled by the sporting prowess on display 

To shade himself from the sun, the monarch opted for a pair of tortoiseshell sunglasses

The visit marked a more casual outing for the King who has been undergoing treatment for an undisclosed form of cancer since last year.

Charles met with former cancer patients in Bradford on Friday where he revealed he is ‘on the better side of his cancer journey’.

Speaking to florist Safeena Khan about his treatment, the monarch said he had been given a ‘thumbs up’ about his health.

Ms Khan presented the King with a bouquet inspired by the garden of his Highgrove home.

‘He asked me how I was, and I asked him how he was,’ she said. ‘There was some pleasantries towards the end, but it was a lovely conversation.’

The King undergoes regular treatment as an out-patient at the London Clinic and the Bradford florist said he gave her the ‘thumbs up’ when she asked about his health, and told her: ‘I’d like to think I’m on the better side (of my cancer journey)’.

This will come as a relief to royal watchers who were recently riled up by Prince Harry’s comments about his father’s health.

After losing a legal battle at the Court of Appeal, a wounded Prince Harry gave a bombshell interview to the BBC where he claimed he didn’t know ‘how much longer’ the King has left to live.

The King, who is undergoing treatment for cancer, attended the event with the help of a walking cane

Charles meets well-wishers in Bradford on Thursday

There, the King spoke to florist Safeena Khan about his treatment and revealed he had been given a ‘thumbs up’ about his health

It comes two weeks after Prince Harry’s BBC interview in which he said he doesn’t know ‘how much longer’ his father has left to live 

‘There have been so many disagreements, differences between me and some of my family this current situation that has been now ongoing for five years with regards to human life and safety is the sticking point it is the only thing that’s left,’ the 40-year-old prince said.

‘Of course, some members of my family will never forgive me for writing a book, of course they will never forgive me for lots of things.

‘But you know there is, I would love reconciliation with my family there’s no point in continuing to fight anymore, as I said life is precious.

‘I don’t know how much longer my father has, he won’t speak to me because of this security stuff but it would be nice to reconcile.’

Speaking about his fears for himself, wife Meghan Markle, 43, and their children, Prince Archie, six, and Princess Lilibet, three, he declared: ‘I don’t want history to repeat itself. Through the [court] process, I have discovered that some people want history to repeat itself.’