Duke’s death was confirmed by her actor son, Sean Astin.

See the late star through the years, ahead.

Patty Duke Through the Years

20th Century Fox/Everett Collection

Patty Duke as a Child Star on March 23, 1959

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Patty Duke in The United States Steel Hour on October 30, 1959

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Patty Duke and Anne Bancroft in The Miracle Worker in 1962

Courtesy Everett Collection

Patty Duke with Ed Begley in 1963

Courtesy Everett Collection

Patty Duke on The Patty Duke Show in the 1960s

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Patty Duke on January 6, 1967

Photoshot/Getty Images

Patty Duke on the set of Valley of the Dolls on April 24, 1967

Harry Benson/Express/Hulton Archive/Getty Images

Patty Duke in 1970

Silver Screen Collection/Getty Images

Patty Duke and John Astin in Hollywood on April 9, 1975

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Patty Duke and John Astin in New York City on May 12, 1977

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Patty Duke and Melissa Gilbert in The Miracle Worker on October 14, 1979

NBC/Courtesy Everett Collection

Patty Duke in New York City in the Late 1970s

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Patty Duke in the Early 1980s

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Patty Duke at the Cameramen and Technical Awards in 1983

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Patty Duke in Hail to the Chief on February 11, 1985

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Patty Duke in A Time to Triumph in 1986

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Patty Duke With Her Son Sean Astin on March 30, 2004

David S. Holloway/Getty Images

Patty Duke at the Hollywood Walk of Fame on August 17, 2004

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Patty Duke With Her Children Mackenzie Astin and Sean Astin on August 17, 2004

Jesse Grant/WireImage

Patty Duke on April 26, 2013

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