Husband of Queen Elizabeth II, Duke of Edinburgh Prince Philip passed away at the age of 99 on the morning of April 09 at Windsor Castle. The Queen announced the demise of her husband with ‘deep sorrow’ via Twitter handle of The Royal Family. Prince Philip passed away on the morning of April 09 at Windsor Castle. Prince Philip who was by the Queen’s side as her consort for over 7 decades, had retired from duties in 2017.