Santa Maria in Vallicella
During the 1590s he made frequent diplomatic trips to Rome, remaining active in the musical life there, and was connected with the Congregation of the Oratory of St Philip Neri. He premiered his famous "Rappresentatione di Anima, et di Corpo..." in February 1600; this piece is generally held to be the first oratorio. According to Roman records the piece was produced twice that year at the Oratorio de Filippini adjacent to Santa Maria in Vallicella, and was witnessed by thirty-five cardinals.