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).
Stefano Landi learned of Grantville from Jules Mazarin, who also told Landi about "modern" music. Mazarin offered Landi an opportunity to visit Grantville. However, Landi declined as he was too old and sick to make such a long and dangerous journey from his native Italy to central Germany, preferring enjoy his prosperous homelife for as long as possible. Marazrin told Landi about Giacomo Carissimi's plans to make the journey. Landi visited Carissimi, and offered to fund Carissimi's journey. Landi also brought funding from two prominent gentlemen who preferred anonymity; Landi called them "F. and A". Also, for his own benefit, Landi wanted Carissimi find out what posterity thought of Landi, and to bring back any modern compositions Carissimi could find. Carissimi accepted Landi's offer.