LONDON, ENGLAND - JUNE 10: Prince Andrew, Duke of York with Princess Beatrice and Princess Eugenie attend a National Service of Thanksgiving as part of the 90th birthday celebrations for The Queen at St Paul's Cathedral on June 10, 2016 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

LONDON, ENGLAND - JUNE 10:  Prince Andrew, Duke of York with Princess Beatrice and Princess Eugenie attend a National Service of Thanksgiving as part of the 90th birthday celebrations for The Queen at St Paul's Cathedral on June 10, 2016 in London, England.  (Photo by Mark Cuthbert/UK Press via Getty Images)