Princess Kate has been seen in public for the first time since her abdominal surgery in January, alongside Carole Middleton. The Princess of Wales had not previously been seen by the public since her outing on Christmas Day in Sandringham last year. However, paparazzi have now photographed Kate, 42, in a car being driven by her mother, Carole Middleton, near Windsor Castle. The princess could be seen wearing sunglasses as she sat in the passenger seat beside her mother. The photographs were not authorised by Kensington Palace, which has regularly emphasised the Princess of Wales’s wish for pri…