Kevin Winter/Getty Images
Hilary Duff: 18th cousin. Shared ancestor: King Edward III.
A new study by FindMyPast.com pinpoints the singer-actress as the most closely-related U.S. celebrity to Queen Elizabeth II. Keep clicking to see which other stars are related to royalty.
Brooke Shields
Matt Sayles/Invision/AP
Brooke Shields: 18th cousin, once removed. Shared ancestor: Henry II of France.
Maggie Gyllenhaal
Dimitrios Kambouris/Getty Images for Coach
Maggie Gyllenhaal: 19th cousin. Shared ancestor: Edward III.
Jake Gyllenhaal
Paul Drinkwater/NBC via Getty Images
Jake Gyllenhaal: 19th cousin. Shared ancestor: Edward III.
Michael Douglas
Michael Buckner/Getty Images
Michael Douglas: 19th cousin, once removed. Shared ancestor: Edward III
Ellen Degeneres
Kevin Winter/Getty Images
Ellen Degeneres: 19th cousin, twice removed. Shared ancestor: Edward III.
Laura Dern
Frederick M. Brown/Getty Images
Laura Dern: 19th cousin, thrice removed. Shared ancestor: Edward III
Paris Hilton
Jason Merritt
Paris Hilton: 20th cousin. Shared ancestor: Henry II.
Uma Thurman
Michael Loccisano/Getty Images
Uma Thurman: 21st cousin, once removed. Shared ancestor: Edward I.
Kyra Sedgwick
AP Photo/Andrew Burton
Kyra Sedgwick: 21st cousin, twice removed. Shared ancestor: Henry III.
Allison Janney
Alberto E. Rodriguez/Getty Images
Allison Janney: 22nd cousin, once removed. Shared ancestor: Edward I
Richard Gere
Evan Agostini
Richard Gere: 22nd cousin, twice removed. Shared ancestor: Edward I.
Sissy Spacek
AP Photo/Matt Sayles
Sissy Spacek: 24th cousin. Shared ancestor: King John.
Tom Hanks
Stephen Lovekin/Getty Images
Tom Hanks: 24th cousin. Shared ancestor: King John.
Sigourney Weaver
Robin Marchant/Getty Images
Sigourney Weaver: 24th cousin, once removed. Shared ancestor: Henry I.
Glenn Close
Fernando Leon/Getty Images
Glenn Close: 24th cousin, twice removed. Shared ancestor: King John.
Beyonce Knowles
Cliff Watts,AP Photo/Parkwood Entertainment
Beyonce Knowles: 25th cousin, once removed. Shared ancestor: Henry II
Brad Pitt
Gareth Cattermole
Brad Pitt: 25th cousin, twice removed. Shared ancestor: Henry II.
Angelina Jolie
Dan Kitwood
Angelina Jolie: 26th cousin. Shared ancestor: Philip II of France.
Alec Baldwin
Larry Busacca/Getty Images
Alec Baldwin: 29th cousin, twice removed. Shared ancestor: Aethelred the Unready.