Nicky Hilton weds James Rothschild at Kensington Palace

Nicky Hilton married James Rothschild in a lavish ceremony at Kensington Palace in London on Friday.

The bride tied the knot looking like royalty in a lace Valentino dress. Nicky's sister, Paris, was the maid of honor and wore a pale blue Dennis Basso frock.

The guest list was filled with famous faces including the bride's aunt, Kyle Richards and Chelsea Clinton. Paris' Paris Hilton shares photo with 'soulmate' Thomas Gross">newest beau, Thomas Gross, also made an appearance.

The banking heir and the hotel heiress have been dating since 2011 and Rothschild popped the question in August 2014.

E! News reports the black tie reception was only part of their three-day celebration affair. On Thursday the couple had cocktails at St. James' Spencer House with family and friends and on Saturday a casual lunch at The Oragery restaurant will be served.