Giulio Caccini (born Rome, 8 October 1551; died Florence, 10 December 1618), also known as Giulio Romano, was an Italian composer and singer. He lived at the very end of Renaissance period and the beginning of the Baroque period. It was the time when opera was starting, and he was one of the first composers to write an opera. His daughter, Francesca Caccini, also became a composer.