Nicholai Olivia Rothschild (née Hilton; born October 5, 1983)[1][2] is an American fashion designer, socialite, and model. She is a member of the Hilton family by birth, and a member of the aristocratic Rothschild family through her marriage to James Rothschild (a grandson of Victor Rothschild, 3rd Baron Rothschild) in 2015.[3]