Photos: Queen Elizabeth at 90

Britain’s Queen Elizabeth II arrives for a visit to the Royal Mail Post Office in Windsor, England, Wednesday, April 20, 2016. (AP Photo/Kirsty Wigglesworth)

AP Photo/Kirsty Wigglesworth

In this image released by the Royal Mail on Wednesday April 20, 2016, Britain’s Prince George stands on foam blocks during a photo shoot for the Royal Mail in the summer of 2015 in the White Drawing Room at Buckingham Palace in London for a stamp sheet to mark the 90th birthday of Britain’s Queen Elizabeth II. The image features four generations of the Royal family, from left, Prince Charles, Queen Elizabeth II, Prince George and Prince William, the Duke of Cambridge. MANDATORY CREDIT (Ranald Mackechnie/Royal Mail via AP)

Ranald Mackechnie/Royal Mail via AP

FILE – In this June 2, 1953 file photo, Britain’s Queen Elizabeth II, center bottom, sits in St. Edward’s Chair, in Westminster Abbey, London, shortly before she was lifted onto the Throne during her Coronation. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

FILE – In this 1942 file photo, Princess Elizabeth is pictured as “Prince Florizel”, left, and her sister, princess Margaret as “Cinderella”, in a pantomime the royal sisters produced in aid of the Royal Household Concerts Well Fund early in London. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

FILE – In this Nov. 20, 1947 file photo, Britain’s Princess Elizabeth leaves Westminster Abbey in London, with her husband, the Duke of Edinburgh, after their wedding ceremony. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo/file)

AP Photo/file

FILE – In this June 5, 1961 file photo, Britain’s Queen Elizabeth II, center, walks with American President John F. Kennedy, right, and his wife Jacqueline Kennedy, as they enter an ante-room in Buckingham Palace, London. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

FILE – In this Saturday, June 13, 2015 file photo, Britain’s Prince William holds his son Prince George, with Queen Elizabeth II, right, Kate, Duchess of Cambridge and the Prince of Wales during the Trooping The Colour parade at Buckingham Palace, in London. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo/Tim Ireland, file)

AP Photo/Tim Ireland, file

FILE – In this Aug. 20, 1946 file photo, Britain’s Queen Elizabeth II, then Princess Elizabeth, right, enjoys a joke with her father King George VI, in the grounds of the Royal Lodge, Windsor, England. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

FILE – In this Nov. 24, 1954 file photo, Elizabeth II of England and Prime Minister, Sir Winston Churchill, wait at Waterloo station for the Queen mother on her return from a month in America. In front, Prince Charles and Princess Anne. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

FILE – In this July 30, 1966 file photo, Queen Elizabeth II presents the World Cup, the Jules Rimet trophy, to England’s team captain Bobby Moore. Britain’s Queen Elizabeth celebrates her 90th birthday on Thursday, April 21, 2016. (AP Photo, file)

AP Photo, file

Queen Elizabeth II is partnered by Ghana President Kwame Nkrumah as they dance the popular Ghana rhythmic shuffle known as the "High Life" at a farewell ball given in honor of the Queen and her husband at the state house in Accra, Ghana at night on Saturday, Nov. 18, 1961. (AP Photo) — Queen Elizabeth II is partnered by Ghana President Kwame Nkrumah as they dance the popular Ghana rhythmic shuffle known as the “High Life” at a farewell ball given in honor of the Queen and her husband at the state house in Accra, Ghana at night on Saturday, Nov. 18, 1961. (AP Photo)

British princesses Elizabeth (right) and Margaret standing together on the train platform as they see off their parents, King George VI and Queen consort Elizabeth, at Waterloo Station, London, May 6th 1939. (Photo by Fox Photos/Hulton Archive/Getty Images)

Queen Elizabeth II arrives at the Kalkara creek to start her boat trip across the Valletta Harbor, Saturday, Nov. 28, 2015. (AP Photo/Rene Rossignaud)

AP Photo/Rene Rossignaud

Britain's Queen Elizabeth II and Prince Philip, Duke of Edinburgh, gather with other members of the British royal family to greet supporters from the balcony at Buckingham Palace, following her coronation at Westminster Abbey. London, June. 2, 1953. (AP Photo/Priest) — Britain’s Queen Elizabeth II and Prince Philip, Duke of Edinburgh, gather with other members of the British royal family to greet supporters from the balcony at Buckingham Palace, following her coronation at Westminster Abbey. London, June. 2, 1953. (AP Photo/Priest)

Britain's Queen Elizabeth II steps from her plane, for the first time as sovereign, at London Airport, on Feb. 7, 1952, after cutting short her official trip to Kenya on the death of her father King George VI. (AP Photo) — Britain’s Queen Elizabeth II steps from her plane, for the first time as sovereign, at London Airport, on Feb. 7, 1952, after cutting short her official trip to Kenya on the death of her father King George VI. (AP Photo)

Queen Elizabeth II sits at a gala dinner during the CHOGM Commonwealth Heads of Government Meeting, in Attard, Malta, Friday, Nov. 27, 2015. (AP Photo/Alessandra Tarantino)

AP Photo/Alessandra Tarantino