As a publishing princess – she's the great-granddaughter of William Randolph Hearst – model, actress and heiress Lydia Hearst chose the perfect place to celebrate her bachelorette party: Hearst Castle in California. Set to marry her TV producer fiancé Chris Hardwick soon, the bride-to-be was joined by her closest girlfriends, including her former Gossip Girl co-star Michelle Trachtenberg. Click through to see the highlights of the lavish bachelorette bash!
