Maria Augusta von Trapp was the stepmother and matriarch of the Trapp Family Singers.
She wrote The Story of the Trapp Family Singers, which was published in 1949 and was the inspiration for the 1956 West German film The Trapp Family, which in turn inspired the 1959 Broadway musical The Sound of Music and its 1965 film version.
Was Maria von Trapp really a nun?
Maria von Trapp was only meant to stay for less than a year and then return to the convent to become a nun.
But she became attached to the children and decided to leave the Church after the Baron proposed (he was 25 years her senior).
Maria and Georg married in 1927, 11 years before the family left Austria, not right before the Nazi takeover of Austria.
Maria did not marry Georg von Trapp because she was in love with him. As she said in her autobiography Maria, she fell in love with the children at first sight, not their father.