Associated Press
Actress Charmian Carr, perhaps best known for her role as the eldest von trapp child in the 1965 classic The Sound of Music, has passed away from a rare form of dementia.
She died Saturday of complications from a rare form of dementia in Los Angeles, Carr's spokesman, Harlan Boll, said.
At age 21, the actress portrayed Liesl von Trapp in the 1965 film musical The Sound of Music. She famously performed the song "Sixteen Going on Seventeen."