Original: Giuseppe Giovanni Battista was father to two further instrument makers: Pietro Guarneri (Pietro da Venezia) (14 April 1695 - 7 April 1762), finding life in Casa Guarneri in some way uncongenial, left Cremona for good in 1718, eventually settling in Venice.
Simplified: Pietro Guarneri (Peter of Venice or Pietro da Venezia) (14 April  1695 - 7 April, 1762) made some instruments that are as great as those of his father.