Prince George and Princess Charlotte are seen in this undated handout photo taken by the Duchess in mid-May at Anmer Hall in Norfolk and released by the Duke and Duchess of Cambridge on June 6.
Prince George gives sister Princess Charlotte a kiss in this undated handout photo taken by the Duchess of Cambridge.
Catherine, Duchess of Cambridge, carries her son Prince George alongside her husband Prince William as they visit the Sensational Butterflies exhibition at the Natural History Museum in London in 2014.
Britain's Prince Charles greets his father Prince Philip, watched by his wife, Camilla, Duchess of Cornwall and his son Prince Harry, during a visit to Prince Harry's Sentebale 'Forget-Me-Not' garden, representing his Sentebale charity, at the 2013 Chelsea Flower Show.
Prince William, Princess Diana and Prince Harry attend the Heads of State ceremony in Hyde Park to commemorate the 50th Anniversary of VE Day May 7, 1995, in London.
Catherine, Duchess of Cambridge, laughs as Queen Elizabeth gestures while they watch part of a 2012 children's sports event during a visit to Vernon Park in Nottingham.
Princes William, right, and Harry, sons of the late Princess Diana, greet guests as they arrive for the Service of Thanksgiving for the Life of Diana at the Guards' Chapel at Wellington Barracks in London in this 2007 photo. Hundreds of mourners gathered in Paris and London on Friday to mark 10th anniversary of the death of Princess Diana.
Britain's Prince Edward, his wife Sophie, Countess of Wessex, and their daughter Lady Louise Windsor smile as they leave after a 2012 thanksgiving service to mark the Queen's Diamond Jubilee at St Paul's Cathedral in central London.
Princesses Beatrice, right, and Eugenie, the daughters of Prince Andrew, Duke of York, and Sarah Ferguson, arrive for a 2012 service to mark the Queen's Diamond Jubilee.
Prince Charles stands with his sons Princes William and Harry on the banks of the river Muick near Ballater where they were enjoying a 1997 summer break at Balmoral Castle.
Queen Elizabeth II smiles as Prince Harry pulls a face as they watch Prince Charles and Camilla, Duchess of Cornwall leave St. George's Chapel after their 2005 wedding.
Harry, left, Eugenie, Beatrice and William pose for photographers prior a 1995 ski practice.
Catherine, Duchess of Cambridge, center, Camilla, Duchess of Cornwall, right, and Sophie, Countess of Wessex, attend the 2012 Order of the Garter Service at St George's Chapel at Windsor Castle.
Prince William is seen making a royal salute as he watches the 1985 scene of Trooping the Colour from the balcony of Buckingham Palace with his brother Harry and mother Princess Diana.
Prince William and Catherine, Duchess of Cambridge, look at one another after their wedding ceremony in Westminster Abbey, in central London April 29, 2011.
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