
In 1947, Princess Elizabeth (the future Queen Elizabeth II) married Philip Mountbatten, Duke of Edinburgh in Westminster Abbey. Her wedding gown was designed by Norman Hartnell and it was made of Chinese silk. The dress featured a high neckline, tailored bodice and a short train.

British couturier Sir Norman Hartnell designed this turquoise-blue dress with a matching bolero jacket for the Queen which she wore at her sister Princess Margaret and Antony Armstrong-Jones' wedding in May 1960.

A few months after John Kennedy began his presidential term in 1961, he visited Buckingham Palace with his wife Jackie Kennedy. As can be seen in this rare picture, the Queen wore a Hartnell royal blue tulle ballgown along with white gloves for the occasion.

Straying away from her signature style, the monarch wore this frothy, full-sleeved gown for a meeting with U.S. President Ronald Reagan and First Lady Nancy Reagan in 1983. The President had hosted a dinner in honour of the Queen and Prince Philip at the de Young Museum in San Francisco.

Considered one of her most controversial looks, this harlequin sequin gown from the Queen's wardrobe boasted an array of brightly coloured squares. The monarch wore the outfit in 1999 for the Royal Variety Performance.

At the official opening of the Scottish Parliament on 1 July 1999, the Queen wore this green silk crepe and lace dress along with a purple coat made of a silk-wool blend. To complete the look, the monarch opted for a matching shawl and a hat made by milliner Philip Somerville. The outfit was designed by Sandra Murray.