There does not exist certain evidence as to the date of the birth and death of Antonio Amati. We have information of the dates on which his brother Girolamo died in extracts from parish registers; also the date of his marriages, which took place in the year 1576, and on May 24, 1584. By his second wife, Girolamo had a family of nine children; the fifth child was Niccolo, who became the famous Violin-maker. The mother of Niccolo died of the plague on October 27, 1630, and her husband, Girolamo, died of the same disease six days later, viz., November 2, 1630, and was buried on the same day. Girolamo is described in the register as "Misser Hieronimo Amati detto il leutaro della vic di S. Faustino" (viz., maker to the Church). Vincenzo Lancetti states that "Count Cozio kept a register of all the instruments seen by him, from which it appeared that the earliest reliable date of the brothers Amati is 1577, and that they worked together until 1628; that Antonio survived Jerome and made instruments until after the year 1648--a fine Violin bearing the last-named date having been recently seen with the name of Antonio alone." This information serves in some measure to set at rest much of the uncertainty relative to the period when these makers lived. These skilful makers produced some of the most charming specimens of artistic work. To them we are indebted for the first form of the instrument known as "Amatese." The early efforts of the brothers Amati have many of the characteristics belonging to the work of their father Andrea; their sound-hole is similar to his, and in keeping with the Brescian form, and the model which they at first adopted is higher than that of their later and better instruments. Although these makers placed their joint names in their Violins, it must not be supposed that each bore a proportionate part of the manufacture in every case; on the contrary, there are but few instances where such association is made manifest. The style of each was distinct, and one was immeasurably superior to the other. Antonio deviated but little from the teaching of his father. The sound-holes even of his latest instruments partake of the Brescian type, and the model is the only particular in which it may be said that a step in advance is traceable; here he wisely adopted a flatter form. His work throughout, as regards finish, is excellent.