Agathe von Trapp was born on 12 March 1913 in Austria-Hungary. She was a writer, known for The von Trapp Family: A Life of Music (2015). She died on 28 December 2010 in Towson, Maryland, USA.
Throughout her life, she made many water color paintings and crayon etchings, most of which she sold. Her artwork illustrates a cookbook of family recipes and "The Trapp Family Book of Christmas Songs", written by Father Franz Wasner. She decorated wooden bowls and was good at carpentry, making some of her own furniture for her house.