Buckingham Palace has confirmed that the Princess of Wales will attend the Remembrance ceremony at the Cenotaph on Sunday alongside senior members of the royal family to mark the annual national day of remembrance for those lost in war.

The palace also said the princess will attend the Festival of Remembrance at the Royal Albert Hall on Saturday evening; This is a clear sign that the royal is on the road to recovery.

However, there is uncertainty about whether Queen Camilla will be well enough to attend the ceremony. The queen, who recently returned from Australia and Samoa with King Charles, has been in bed this week with a chest infection.

The princess, who was photographed attending a church service with Prince William, the king and queen in Scotland in August, is doing “fine” and feeling “better than ever”, according to a family friend.

“Catherine was determined to attend two important events; Joining the Colors and Remembrance Sunday because he knows how important these are to both the king and the nation. “She’s doing very well and feeling very strong and positive about the future,” the source told VF.com. “She and William actually made a few low-key visits to Scotland recently without their kids, and it was a very special time for them.”

Aides said the princess intends to return to work full-time when she is ready and is working on a Christmas thanksgiving carol at Westminster Abbey next month, which she plans to attend with her family.

The Palace’s confirmation that he will attend this weekend’s Cenotaph ceremony comes after the Prince of Wales spoke of having had “the hardest year of my life” in an interview in Cape Town following the Earthshot Prize awards ceremony in South Africa.

The prince, who spoke little about his wife’s cancer diagnosis and his father’s battle with cancer, opened up about what the last few months had been like, describing how proud he was of his wife and how “brutal” times had been. He added that the princess was in good condition.

Speaking to reporters in Cape Town about those stressful months, the prince said: “Honestly? It’s been terrible. It’s probably been the hardest year of my life. So it’s been really difficult trying to deal with everything else and keep everything on track.”

“But I am so proud of my wife. I’m proud of my dad for handling the things he did.

“But from a personal family perspective, yes, it was brutal.”

When asked how the princess was doing, she smiled and said: “She’s doing well. She’s doing well.”

While the king and princess underwent surgery and cancer treatment, it largely fell to William and Camilla to take up the wand. The king, who recently toured Australia and attended the Commonwealth Heads of Government Meeting in Samoa, is continuing his treatment, but it is said that he tolerates the condition well.

William’s comments mark a new level of openness following his wife and father’s decision to speak publicly about their cancer journey.

The prince spoke to reporters on the final day of his hugely successful tour in South Africa, which hosted the fourth Earthshot Award ceremony.

Explaining his plans for the future, the prince stated that he plans to use his platform and title to “do something good”, adding: “I’m helping people’s lives and doing something really meaningful.”

William’s Earthshot initiative is a 10-year project that aims to find solutions to many of the climate and environmental challenges facing the world. Each year for ten years, five winners will each receive £1 million in prize money to put their ideas and innovations into practice.