Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Stefano Landi (baptized 26 February 1587 – 28 October 1639) was an Italian composer and teacher of the early Baroque Roman School. He was an influential early composer of opera, and wrote the earliest opera on a historical subject: Sant'Alessio (1632). Landi was born in Rome, the capital of the Papal States. In 1595 he joined the Collegio Germanico in Rome as a boy soprano, and he may have studied with Asprilio Pacelli. Landi took minor orders in 1599 and began studying at the Seminario Romano in 1602.