Original: The last maker of the family was Nicolo's son, Girolamo Amati, known as Hieronymus II (February 26, 1649 â "February 21, 1740).
Simplified: The last maker of the family was Nicolo's son, Girolamo Amati, known as Hieronymus II. He was born on 26 February and died on 21 February, 1740.