
(Wikimedia CC public domain)

From left to right: Princess Elizabeth, Queen Elizabeth, Sir Winston Churchill, King George VI, and Princess Margaret.
Princess Elizabeth assumed the throne in 1952, on the death of her father; her formal coronation took place in 1953.
(Wikimedia CC public domain)
It’s a tad late, but I enjoyed listening to the very Christian 2015 Christmas message from Queen Elizabeth II, who will turn 90 on 21 April 2016:
https://www.facebook.com/TELEGRAPH.CO.UK/videos/10153862836414749/?pnref=story
Thanks to Anne Palmieri and Charles Steinman for alerting me to it.