Simplify the following text for a Grade 7 native English-speaking person.
Original: Louis Antoine Jullien ( born Sisteron , France , 23 April , 1812 ; died Paris , 14 March 1860 ) was a French conductor who was famous for his showmanship .
Simplified: Louis Antoine Jullien ( 23 April 1812 - 14 March 1860 ) was a French conductor and composer of light music .