LOS ANGELES (CBS SF/AP) – Charmian Carr, the actress best known for portraying the eldest von Trapp daughter in Rogers & Hammerstein’s “The Sound of Music,” has died. She was 73.

BEVERLY HILLS, CA - JULY 30: Actress Charmain Carr attends The Academy Of Motion Picture Arts And Sciences' Last 70mm Film Festival Screening Of

Actress Charmain Carr (credit: Valerie Macon/Getty Images)

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Carr’s spokesman Harlan Boll says she died Saturday of complications from a rare form of dementia in Los Angeles.

The actress portrayed Liesl von Trapp in the 1965 musical “The Sound of Music” and famously performed the song “Sixteen Going on Seventeen.”

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Carr wrote a pair of books about her experiences: “Forever Liesl” and “Letters to Liesl.” She later went on to star with Anthony Perkins in the Stephen Sondheim television musical “Evening Primrose.”

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