The "most royal" U.S. celebs

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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

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Brooke Shields: 18th cousin, once removed. Shared ancestor: Henry II of France.

Maggie Gyllenhaal

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Maggie Gyllenhaal: 19th cousin. Shared ancestor: Edward III.

Jake Gyllenhaal

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Jake Gyllenhaal: 19th cousin. Shared ancestor: Edward III.

Michael Douglas

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Michael Douglas: 19th cousin, once removed. Shared ancestor: Edward III

Ellen Degeneres

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Ellen Degeneres: 19th cousin, twice removed. Shared ancestor: Edward III.

Laura Dern

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Laura Dern: 19th cousin, thrice removed. Shared ancestor: Edward III

Paris Hilton

Jason Merritt

Paris Hilton: 20th cousin. Shared ancestor: Henry II.

Uma Thurman

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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

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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

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Tom Hanks: 24th cousin. Shared ancestor: King John.

Sigourney Weaver

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Sigourney Weaver: 24th cousin, once removed. Shared ancestor: Henry I.

Glenn Close

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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

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Alec Baldwin: 29th cousin, twice removed. Shared ancestor: Aethelred the Unready.