Royalty, celebrities and fashion mix at polo event
26 July 2010 Last updated at 22:33 BST
One of the poshest events in the social calendar it is the Cartier International Polo Day.
Stars from the stage and screen mingled with royalty, but as usual the event was more to do with the fashion and celebrity outfits than the sport.
Prince Charles oversaw the match while Lizo Mzimba caught up with some of the famous faces.