Prince Philip: Reaction and tributes after Duke of Edinburgh dies aged 99 The news of his death was confirmed in a statement from Buckingham Palace this morning Updated Tributes are being paid to Prince Philip who has died at the age of 99. The Duke of Edinburgh - described by The Queen as her ‘strength and stay’ - passed away at Windsor Castle this morning. The news of his death was confirmed in a statement from Buckingham Palace and was followed by tributes from across the country and the world. The statement said: “It is with deep sorrow that Her Majesty The Queen announces the death of her beloved husband, His Royal Highness The Prince Philip, Duke of Edinburgh.