B. 1561, d. 1631, Cremona
Second son of Andrea, who worked in tandem with Antonio until 1588. Virtually all the instruments from the workshop both before and after this date bear the label of the Fr.(atelli) Amati, although some rare instruments from the first decade of the seventeenth century are labelled by Girolamo alone. Considerable numbers of violins, violas and celli survive, and some viols. His work consolidated the primacy of the Cremonese school of violin making throughout Europe, and his death in 1631 is attributed to the plague which swept Northern Italy at that time.