Britain's Prince William and his wife the Duchess of Cambridge leave with other members of the royal family after a Church Service to mark the 90th birthday of Queen Elizabeth II's husband Prince Philip in Windsor, west of London, Sunday June 12, 2011. Philip, also known as the Duke of Edinburgh, married the queen in 1947. He is the son of the late Prince Andrew of Greece and a great-great-grandson of Britain's Queen Victoria, giving him deep royal roots. He turned 90 on Friday. (AP Photo/Carl Court, Pool)
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