From left to right: Britain's Catherine, Duchess of Cambridge leaves St. George's Chapel, with other members of the royal family, after a service to mark Prince Philip's 90th birthday, in Windsor, west of London June 12, 2011; Duchess of Cambridge waves to the crowd as she sits in a horse drawn carriage with other members of the royal family as they make their way to Buckingham Palace after attending the Trooping the Colour ceremony in central London June 11; Catherine meets U.S. first lady Michelle Obama at Buckingham Palace, in London May 24, 2011; Catherine, Duchess of Cambridge arrives for a charity dinner at Kensington Palace in London June 9, 2011.

Left to right: In this combination photo, Catherine, Duchess of Cambridge, stands on the balcony of the Royal box before the Derby at Epsom Racecourse in southern England June 4, 2011 and she is spotted in Buckingham Palace, following her wedding, in central London April 30, 2011.