UK's Prince Philip makes rare outing
Philip married Elizabeth in 1947, five years before she became queen. He is now by far the longest-serving consort of any British monarch.
Philip, the Duke of Edinburgh, has been colonel-in-chief of the Rifles since its formation in 2007 but his connection to the regiment stretches back to 1953 as he has served as colonel-in-chief of successive regiments which make up the Rifles.
In a ceremony at Windsor Castle, west of London, four buglers announced Philip's arrival and then sounded the "No More Parades" call to mark his final ceremony as colonel-in-chief.
Philip celebrated his 99th birthday on June 10. He stepped down from royal duties in August 2017 after completing more than 22,000 solo engagements but in recent years he has been increasingly rarely seen in public.
He did however attend the secret wedding of Princess Beatrice, elder daughter of Prince Andrew and Sarah, Duchess of York, on Friday (July 17).
