Discover the life of the composer Mozart with the National Geographic Kids Biography: Mozart The Boy Who Changed the World With His Music by Marcus Weeks. This biography covers Wolfgang Amadeus Mozart from his birth in 1756 in Salzburg, through his childhood as a musical prodigy, his adulthood and career as a successful composer, through to his death at an early death from illness in 1791. Filled with illustrations, photographs, paintings, maps, timelines and more, this biography is written for ages 8 to 12 years.