Lady Kitty Spencer married her fiancé Michael Lewis in a beautiful Rome ceremony.MORE: Princess Diana's niece Kitty Spencer's Italian wedding - guests, dress and moreTheir wedding was a star-studded affair, filled with many of Lady Kitty's friends from Pixie Lott to Made in Chelsea star Mark Francis Vandelli.Here's who attended…WATCH: Guests arrive for the wedding of Lady Kitty Spencer Singer Pixie Lott is a close friend of Kitty, and the pair memorably met up at the Schiaparelli show during