Pietro Giovanni Guarneri (18 February 1655 - 26 March 1720), known as Peter of Mantua ("Pietro da Mantova") to distinguish him from his nephew Pietro Guarneri. He worked in his father's workshop from around 1670 until his marriage in 1677. He had settled in Mantua by 1683, where he worked both as a musician and a violin maker. His instruments are generally better than his father's. However, he did not make so many instruments because he spent a lot of his time playing them. None of his children became violin makers. Joseph Szigeti played one of his instruments.