sentences:  Anna Maria soon bore a daughter, Angela Teresa, followed just over a year later by a son, Pietro Giovanni, who was eventually to carry on his father's violin making.In 1655 we have the first proof that Andrea had definitively left Amati's workshop, in the form of a label in a violin dated 1655, which says ""ex Allumnis Nicolai Amati"".In all previous labels ""Alumnus"" was written without the prefix ""ex"".