Charmian Carr, Liesl in 'The Sound of Music,' dies

Charmian Carr, best known for her role as Liesl in the film version of "The Sound of Music," died Saturday at the age of 73, her website and the Rodgers & Hammerstein Organization confirmed.
Carr died of complications from a rare form of dementia, her family said.
The actress sang one of the movie's classic songs, "Sixteen Going on Seventeen."

"Charmian Carr played the oldest Von Trapp child, and in some ways she maintained that role in real life -- guiding, cheering, supporting and generally being there for the rest of her 'sisters' and 'brothers,'"