Summary from Wikipedia

Son of a ship chandler from Genoa, Paganini showed great gifts for music from an early age and studied under Alessandro Rolla, Ferdinando Paer and Gasparo Ghiretti. Accompanied by his father, he toured northern Italy extensively as a teenager. By 1805 he had come into the service of Napoleon's sister, Elisa Bonaparte, who then ruled Lucca where Paganini was first violin. From 1809 on he returned to touring and achieved continental fame in the subsequent two and a half decades, developing a reputation for his technical brilliance and showmanship, as well as his extravagant, philandering lifesty ...