Original sentence: An outbreak of the plague in the summer of 1503 prompted the evacuation of the Duke and his family, and Josquin left by April of the next year, possibly also to escape the plague.His replacement, Jacob Obrecht, died of the plague in the summer of 1505.Josquin did not stay in Ferrara long.While in Ferrara, Josquin wrote some of his most famous compositions, including the austere, Savonarola-influenced Miserere, which became one of the most widely-distributed motets of the 16th century; the utterly contrasting, virtuoso motet Virgo Salutiferi ; and possibly the Missa Hercules Dux Ferrariae, which is written on a cantus firmus derived from the musical letters in the Duke's name
Edited sentence: In Ferrara Josquin wrote the exquisite Missa Hercules Dux Ferrariae, which is written on a cantus firmus derived from the musical letters in the Duke's name.While there he also wrote a setting of the Miserere, Psalm 51, for five voices, widely acknowledged to be one of his masterpieces