sentences:  However, it is thought that even quite some time after both Andrea Guarneri and Francesco Ruggieri left Amati's workshop they occasionally made entire instruments for their former master, which bear the Amati label.By the mid-1660s Andrea and Anna Maria had had two more sons, Eusebio Amati, born in 1658, and Giovanni Battista in 1666.Despite their third son Eusebio's namesake, and probably his god-parent, he was the only son not to follow in his father's footsteps as a violin maker.