His Royal Highness The Prince Philip, Duke of Edinburgh was the husband of Her Majesty Queen Elizabeth II.  Since their marriage on 20 November 1947, he has provided enormous and selfless support to Her Majesty in all her endeavours.  He is the longest-serving consort of a reigning British monarch and the oldest ever male member of the Royal Family.  He is the third longest-lived member of the Royal Family, following Princess Alice, Duchess of Gloucester and Queen Elizabeth The Queen Mother.  He retired from his royal duties on 2 August 2017, aged 96, having completed over 22,200 solo engagements since …