Longest-reigning living monarch

April 21, 2017 GMT

Queen Elizabeth II is the world’s longest-reigning living monarch since the death of Thailand’s King Bhumibol Adulyadej last year.

In photo: Queen Elizabeth II, right, and Prince Philip, left, pose with their royal guests, King Bhumibol Adulyadej of Thailand and Queen Sirikit, at Buckingham Palace in London, United Kingdom on July 19, 1960. (AP Photo)