Prince Charles was seen blowing a kiss to his daughter-in-law Kate Middleton in a rare sweet moment of affection as the royal family attended the Service of Thanksgiving at St Paul’s Cathedral today. As Prince Charles and his wife Camilla made their way into the cathedral, they were greeted by the Prince of Wales’ eldest son, Prince William, 39, and his wife Kate, 40. Prince Charles could be seen smiling as he raised his hand to his mouth and blew a kiss to Kate.