Complex sentence: In 1803 the family is moved to Milan where Antonio began to work at a young age; he became a violinist with the Teatro di Pavia in the spring of 1807, but lost the post with the fall of the Napoleonic Empire in 1814.
Split into simpler sentences: In 1803 the family is moved to Milan where Antonio began to work at a young age. He became a violinist with the Teatro di Pavia in the spring of 1807, but lost the post with the fall of the Napoleonic Empire in 1814.