FILE - In this Wednesday, Aug. 30, 2017 file photo Britain's Prince William and his wife Kate, Duchess of Cambridge smile as they arrive at the memorial garden in Kensington Palace, London. Kensington Palace says Prince William and his wife, the Duchess of Cambridge, are expecting their third child. The announcement released in a statement Monday Sept. 4, 2017 says the queen is delighted by the news. (AP Photo/Kirsty Wigglesworth, File)
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