The King smiled and waved at members of the public as he arrived for the Easter Sunday service at Windsor Castle, in his most significant public appearance since he was diagnosed with cancer.Charles, 75, joined the Queen and other members of the royal family for the annual Easter Mattins Service at St George's Chapel on Sunday.The Princess of Wales and her family were not at the service.Charles arrived by car at St George's Chapel alongside the Queen, who was wearing a green coat dress by Anna V

The King smiled and waved at members of the public as he arrived for the Easter Sunday service at Windsor Castle, in his most significant public appearance since he was diagnosed with cancer.Charles, 75, joined the Queen and other members of the royal family for the annual Easter Mattins Service at St George's Chapel on Sunday.The Princess of Wales and her family were not at the service.Charles arrived by car at St George's Chapel alongside the Queen, who was wearing a green coat dress by Anna Valentine and a hat by Philip Treacy, shortly after 10.40am.A member of the public shouted "Happy Easter", to which the King gestured with his arm and responded: "And to you".The Princess Royal and her husband Vice Admiral Sir Timothy Laurence, the Duke and Duchess of Edinburgh, the Duke of York and Sarah, Duchess of York, all arrived at the chapel a few moments before the King and Queen.