The touching card the Prince of Wales has sent to those offering condolences following Prince Philip's death: note includes photo of a young Charles by his father's side on a sailing adventure Prince Charles, 72, has thanked fans for sending sympathy notes to Clarence House after Prince Philip's death on April 9th at the age of 99 The royal has shared a childhood picture of himself and the Duke of Edinburgh on a boating trip in the card acknowledging the condolences Fans loved 'nostalgic' picture and said Charles had Philip 'all to himself' in snap