Prince Philip's youngest granddaughter, Lady Louise Mountbatten-Windsor, made her official royal debut tonight as she spoke about her love of carriage driving.The daughter of Prince Edward and Sophie, Countess of Wessex is an active carriage driver and took inspiration from her late grandfather, Prince Philip, Duke of Edinburgh.Lady Louise, 17, has appeared in public on several occasions with her parents but has not officially spoken, until now.The royal, who is set to decide on whether she would like to take her title as Princess on her 18th birthday in November, admitted that she was often rather intimidated by her grandfather's knowledge of the sport.Speaking about Prince Philip, his daughter-in-law, Sophie, 56, said: "My daughter, she's.
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