Prince William shared a personal tribute to Queen Elizabeth II on Monday, just days before celebrations for her Diamond Jubilee, according to CBS News.
Four days of festivities are planned to mark the Queen's 60 years on the throne next weekend.
The Duke of Cambridge posted a picture of himself and his grandmother on the Historypin website from Dec. 2006, during the Sovereign's Parade at Sandhurst Military Academy. It shows William smiling as the Queen passes by him.
The Washington Post estimated one million people are due in London starting Saturday and that, in terms of sheer pageantry, will be much grander than the wedding of Prince William and his now-famous bride, Catherine.
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The display will include some of the most iconic pieces from the royal collection including jewels worn by Queen Victoria for her diamond jubilee and is on view to the public over the summer.
Among the events planned June 2-5, are a parade of boats down the River Thames, fireworks and a concert outside Palace with Paul McCartney and Elton John.