He added that it “sounds to me like a typical husband”.

The King was diagnosed with cancer earlier this year and continues to undergo cancer treatment weekly. At the end of April he resumed public-facing duties and has been steadily increasing his workload. Today marks the first time he has travelled abroad since his diagnosis.

King Charles refrained from making public what type of cancer he has. The King was diagnosed with cancer just 10 days after he was admitted to hospital for a corrective procedure on an enlarged prostate.

Aides said he was diagnosed having undergone subsequent tests while he was receiving treatment at The London Clinic. It is not connected with his recent surgery and it is not prostate cancer.

Kate was also diagnosed with cancer earlier this year after planned abdominal surgery. The Princess of Wales has taken a step back from royal duties since the shock announcement.