The Trapp Family was a singing group formed from the family of former Austrian naval commander Georg von Trapp. The family achieved fame in their original singing career in their native Austria during the interwar period. They also performed in the United States before immigrating there permanently to escape the deteriorating situation in Austria leading up to World War II. In the United States, they became well known as the "Trapp Family Singers" until they ceased to perform as a unit in 1957. The family's story later served as the basis for a memoir, two German films, and the Rodgers and Hammerstein Broadway musical The Sound of Music. The last surviving of the original seven, Maria Franziska, died in 2014 at the age of 99. The youngest and last surviving member of the Trapp Family Singers is Johannes von Trapp.