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.
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Brooke Shields
Brooke Shields: 18th cousin, once removed. Shared ancestor: Henry II of France.
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Maggie Gyllenhaal
Maggie Gyllenhaal: 19th cousin. Shared ancestor: Edward III.
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Jake Gyllenhaal
Jake Gyllenhaal: 19th cousin. Shared ancestor: Edward III.
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Michael Douglas
Michael Douglas: 19th cousin, once removed. Shared ancestor: Edward III
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Ellen Degeneres
Ellen Degeneres: 19th cousin, twice removed. Shared ancestor: Edward III.
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Laura Dern
Laura Dern: 19th cousin, thrice removed. Shared ancestor: Edward III
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Paris Hilton
Paris Hilton: 20th cousin. Shared ancestor: Henry II.
Credit: Jason Merritt
Uma Thurman
Uma Thurman: 21st cousin, once removed. Shared ancestor: Edward I.
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Kyra Sedgwick
Kyra Sedgwick: 21st cousin, twice removed. Shared ancestor: Henry III.
Credit: AP Photo/Andrew Burton
Allison Janney
Allison Janney: 22nd cousin, once removed. Shared ancestor: Edward I
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Richard Gere
Richard Gere: 22nd cousin, twice removed. Shared ancestor: Edward I.
Credit: Evan Agostini
Sissy Spacek
Sissy Spacek: 24th cousin. Shared ancestor: King John.
Credit: AP Photo/Matt Sayles
Tom Hanks
Tom Hanks: 24th cousin. Shared ancestor: King John.
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Sigourney Weaver
Sigourney Weaver: 24th cousin, once removed. Shared ancestor: Henry I.
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Glenn Close
Glenn Close: 24th cousin, twice removed. Shared ancestor: King John.
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Beyonce Knowles
Beyonce Knowles: 25th cousin, once removed. Shared ancestor: Henry II
Credit: Cliff Watts,AP Photo/Parkwood Entertainment
Brad Pitt
Brad Pitt: 25th cousin, twice removed. Shared ancestor: Henry II.
Credit: Gareth Cattermole
Angelina Jolie
Angelina Jolie: 26th cousin. Shared ancestor: Philip II of France.