The Duke of Edinburgh wrote to actor Lionel Jeffries to thank him for his sympathies after Lord Mountbatten was killed.
Princess Elizabeth Alexandra Mary of York was born on April 21 1926.
The Duke of Edinburgh reportedly refuses to be under the same roof as the Duchess of York.
The CPS have concluded "it would not be in the public interest" to charge the royal.
Prince George finally found his time to shine on the big day.