Queen Elizabeth II with the Duchess of Cambridge, as they view the exhibitions for the summer opening of Buckingham Palace in central London, just a few months after she wed Prince William.
The Queen and the Duchess of Cambridge are all smiles during their Diamond Jubilee visit to Vernon Park in Nottingham.
Queen Elizabeth II and the Duchess of Cambridge at Leicester's Clock Tower during a visit to the city as part of the Diamond Jubilee Tour.
Kate accompanies the Duchess of Cornwall and Queen Elizabeth after visiting Fortnum and Mason in London.
Prince William and Kate Middleton with Queen Elizabeth as they stand together on the balcony of the Council House in Nottingham as part of The Queen's Diamond Jubilee tour.
Queen Elizabeth and the Duchess of Cambridge arriving at the Christmas Day service at Sandringham.
Kate inspects a portrait of Queen Elizabeth II while in New Zealand.
The royal family exchange a laugh as they watch the fly-past from the balcony of Buckingham Palace during Trooping the Colour, Queen Elizabeth II's Birthday Parade.
The Duchess of Cambridge pushes Princess Charlotte of Cambridge in her pram as Queen Elizabeth II looks on as they leave the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte.
The Queen smiles at Prince George and Princess Charlotte as the royal family look out from the balcony of Buckingham Palace during the Trooping the Colour parade.
Kate performs a curtsy to Queen Elizabeth II as she attends Easter Day Service with Prince William, Duke of Cambridge and Princess Beatrice of York at St George's Chapel.
The Duchess of Sussex and Her Majesty share a laugh at their first event together.
The Queen and the Duchess of Sussex wave as they exit Chester Town Hall.
The Duke and Duchess of Sussex sit with Queen Elizabeth II at the Queen's Young Leaders Awards Ceremony at Buckingham Palace.
Prince Harry, Meghan Markle and Queen Elizabeth II at day 1 of Royal Ascot at Ascot Racecourse.