Kate Middleton Served as 'Peacemaker' for Prince William and Prince Harry at Prince Philip’s Funeral

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ET spoke to royal expert Katie Nicholl about how Kate Middleton played peacemaker between Prince William and Prince Harry at Prince Philip's Funeral. She also reveals which members of the royal family gave Harry the cold shoulder during his visit to the U.K. Prince Philip was laid to rest at St. George’s Chapel in Windsor Castle on Saturday. He died a week prior, at 99 years old.