Charles III is currently undergoing cancer treatment after being diagnosed with the disease following prostate surgery earlier this year. After a three-month break, he has been attending public appointments again since last week.

On Wednesday, the king will attend a garden party in the grounds of Buckingham Palace. According to media reports, on the same day he could also see his son Prince Harry, who moved to the USA, who is coming to London for the tenth anniversary of the founding of the Invictus Games for injured war veterans.

The difficult times that the British royal family is currently going through are driving up their popularity ratings: In a survey published on Sunday for the "Mail on Sunday", 54 percent of Brits expressed a positive opinion of their king, four percentage points more than before Year.

56 percent of those surveyed thought that Charles III. fulfills his role as regent well. A demonstration to mark the coronation anniversary attracted only a few dozen opponents of the monarchy to London's Trafalgar Square on Sunday.

In March, Charles' daughter-in-law Princess Kate announced that she also had cancer. The 42-year-old last appeared in public at Christmas.