The Nuttall Encyclopedia
A Lombard painter whose proper name was Girolamo Mazzola, born at Parma; went to Rome when 19 and obtained the patronage of Clement VII.; after the storming of the city in 1527, during which he sat at work in his studio, he went to Bologna, and four years later returned to his native city; failing to implement a contract to paint frescoes he was imprisoned, and on his release retired to Casalmaggiore, where he died; in style he followed Correggio, and is best known by his "Cupid shaping a Bow" (1504-1540).
Wood, James, ed. Entry for 'Parmigiano'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/p/parmigiano.html. Frederick Warne & Co Ltd. London. 1900.