Agathe, who died of congestive heart failure, was the daughter of Capt. Georg Ritter von Trapp and Agathe Whitehead von Trapp. The couple had seven children together and the widowed captain had three more children with his second wife Maria Augusta Kutschera, who was portrayed by Julie Andrews in the Oscar winning film.
A guitar player and singer with her musical family, Agathe lived with her dear friend Mary Louise Kane for nearly 50 years, running a kindergarten at the Sacred Heart Catholic parish in Glyndon, Md. Until 1993, according to the Daily News.
Upset by the portrayal of her father as a disciplinarian in the film, Agathe penned the book Memories Before and After the Sound of Music, in which she sought to set the record straight about her father.
She is survived by four members of the Trapp Family Singers and will be buried in the spring near the Trapp Family Lodge in Stowe, Vt.
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