Nicholai Olivia "Nicky" Rothschild is an American socialite, fashion designer and model. She is a member of the Hilton family by birth, and a member of the Rothschild family through her marriage to James Rothschild, a grandson of Victor Rothschild, 3rd Baron Rothschild, in 2015.

Kathleen Elizabeth Hilton is an American socialite, fashion designer, actress, and television personality. She is the mother of socialite Paris Hilton and fashion designer Nicky Hilton and the half sister of The Real Housewives of Beverly Hills stars Kim Richards and Kyle Richards. From 2011–2022, Hilton has also appeared on that series.