Question: What book written by Maria von Trapp inspired a famous musical that was performed live on ITV in 2015?
Sentence (from "Maria von Trapp"): Maria Augusta von Trapp (née Kutschera; 26 January 1905 – 28 March 1987), also known as Baroness von Trapp, was the stepmother and matriarch of the Trapp Family Singers.
Relevant evidence: No