Kate Middleton had a special day at the courts!On Tuesday, the Princess of Wales attended day 2 of the Wimbledon tennis championships. Kate, who is the patron of the All England Lawn Tennis and Croquet Club, made her arrival sans her husband, Prince William, and took in matches from the royal box.Making a stylish entrance, Kate, 41, wore a white pleated skirt and a lime green blazer by Balmain.