It was understood that there was no cause for concern in the Queen’s condition and there was no regression. In addition to heeding doctors’ advice not to delay his recovery, he is also said to be mindful of the risk of passing the seasonal infection to others.

The ceremony at the Cenotaph is a major fixture in the royal calendar.

The Princess of Wales signaled her intention to attend the Remembrance events on September 9 when she released a video announcing that she had finished chemotherapy, Kensington Palace sources said.

It was confirmed that he would be well enough to go on Friday.

It marks the next major step in the Princess’ measured return to public royal duties, following appearances at the Trooping the Color event at Wimbledon and a visit to bereaved families in Stockport in October.

Prince William this week spoke about the toll that both his father and his wife’s illnesses have taken on the family, saying 2024 has been “brutal” and “probably the hardest year of my life”.

The Queen continues to rest at her Wiltshire home, Ray Mill, and plans to return to London early next week if royal doctors give the go-ahead.

He has plenty of engagements in his diary, including a Booker Prize event at Clarence House on Tuesday, a Palace reception celebrating the TV and film industry and a night out with the King. The star-studded world premiere of Gladiator II on Wednesday.

King on Thursday He will celebrate his 76th birthday.