Britain&#39;s Catherine, Duchess of Cambridge (L) and Britain&#39;s Prince William, Duke of Cambridge attend the funeral service of Britain&#39;s Prince Philip, Duke of Edinburgh inside St George&#39;s Chapel in Windsor Castle in Windsor, west of London, on April 17, 2021. - Philip, who was married to Queen Elizabeth II for 73 years, died on April 9 aged 99 just weeks after a month-long stay in hospital for treatment to a heart condition and an infection. (Photo by Yui Mok / POOL / AFP) (Photo by YUI MOK/POOL/AFP via Getty Images)