The King gave King Abdullah II of Jordan a special gift as he welcomed him to Windsor Castle to celebrate his silver jubilee.
The Jordanian monarch, who met Prime Minister Sir Keir Starmer in Downing Street on Wednesday, joined the King for tea at the castle on Thursday, where Charles presented him with a silver beaker.
The gift, engraved with the ciphers of the King and Queen, marks 25 years since Abdullah became King of Jordan.
The visit began when Charles walked out on to the quadrangle at Windsor Castle and the band of the 1st Battalion Welsh Guards played God Save the King.
As the King of Jordan arrived in a grey Range Rover, the guard of honour gave a royal salute and the band played the Jordanian national anthem.
King Charles III poses with King Abdullah II of Jordan at Windsor Castle (Andrew Matthews/Reuters)
King Abdullah of Jordan is greeted by the King at Windsor Castle (Andrew Matthews/PA)
The two kings shook hands and Major Edward Emlyn-Williams, the Captain of the Guard, in Arabic invited Abdullah II to inspect the guard.
Afterwards the men watched a military march-past.
The kings laughed as they spoke to a guard before going into the castle for tea.
Charles visited Jordan five times as Prince of Wales, most recently in 2021.
King Abdullah last visited Charles at Buckingham Palace in November 2022.
His eldest son and heir, Crown Prince Hussein, and his wife, Princess Rajwa, had a daughter, Princess Iman in August.
It has been a busy Thursday for the 75-year-old monarch who hosted a reception for Paralympic and Olympic medallists at Buckingham Palace earlier today.
Alongside his sister Princess Anne, the King met with the elite athletes who scooped up gold, silver and bronze medals at the Games in Paris.
King Abdullah II of Jordan and the King inspect the Guard of Honour at Windsor Castle (Andrew Matthews/PA)
As the King of Jordan arrived in a grey Range Rover, the guard of honour gave a royal salute and the band played the Jordanian national anthem
King Charles was pictured beaming as he greeted athletes who’d won medals at the Paris 2024 Olympic and Paralympic Games
Princess Anne (pictured) attended the reception at Buckingham Palace in place of Queen Camilla, who is ill. She looked stylist in a burgundy coat dress
The King looked dapper, both at the reception and during his meeting with King Abdullah. in a navy pinstripe suit, with a single-breasted blazer, white shirt, and pale purple tie. He also pinned a poppy to his lapel.
Meanwhile, the Princess Royal looked stylish in a burgundy coat dress, with a cinched in waist, which feel to just below her knees.
She accessorised with a velvet scarf, black gloves, and low-heeled black pumps. She too wore a poppy pinned to her dress.
Queen Camilla was supposed to be attending the engagement, but is currently taking time off, as she recovers from a chest infection.
The Olympics reception was not the only engagement Camilla had to avoid due to her current chest infection.
It was announced several days ago that Her Majesty had to reluctantly withdraw from the annual opening of the Field of Remembrance, as well as the reception, due to illness.
It’s understood that the 77-year-old is recovering at home in Wiltshire and is being monitored by doctors.
Camilla not attending the Field of Remembrance event was seen as a sign of how poorly she is feeling, as the engagement is a duty she takes extremely diligently, as the daughter of decorated war hero Major Bruce Shand, who earned two military crosses in the Second World War for his bravery.
Instead, the Duchess of Gloucester stepped in to take her place earlier today.
King Charles and Princess Anne attend a reception for medallists from the Paris 2024 Olympic and Paralympic Games
King Charles is pictured chatting with guests at the event at Buckingham Palace today
The King looked dapper in a navy pinstripe suit, with a single-breasted blazer, white shirt, and pale purple tie
King Charles speaks with Dame Sarah Storey, a British cyclist and swimmer
An update issued by the Palace yesterday revealed that the Queen is expected to return to work as soon as next week.
A Buckingham Palace spokesman said: ‘Her Majesty The Queen is currently unwell with a chest infection, for which her doctors have advised a short period of rest.
‘With great regret, Her Majesty has therefore had to withdraw from her engagements for this week but she very much hopes to be recovered in time to attend this weekend’s Remembrance events as normal.
‘She apologises to all those who may be inconvenienced or disappointed as a result.’
Camilla also hopes she will also be well enough to attend this weekend’s Remembrance events, including the ceremony at the Cenotaph on Sunday.