Ahead of the start of worlds most glamorous tennis championship, Vogue editor Alexandra Shulman and former tennis star Boris Becker hosted a star-studded celebration of Ralph Lauren's 10th Year as Official Outfitters of the Wimbledon tennis tournament. Attending the elegant summer cocktail party at Kensington Palace, were a host of famous faces including Hollywood A Lister Jessica Chastain, Downton Abbey stars Lily James and Joanna Froggart, Star Trek star Alice Eve, and Doll and Em actress Emily Mortimer.