Son of the luthier Giovanni Battista Rogeri (himself a pupil of Nicolò Amati in Cremona) Pietro Giacomo (born in 1665) was trained in his father's workshop after the family moved to Brescia.
The two luthiers worked following the Amati style and on two main violin models: a larger one based on the Grand Pattern, and one with a slenderer sound-box. The corners are usually narrow, elongated and turned towards the inside of the C-bouts. The F-holes show the influence not only of the Cremonese master, but also of Jacob Stainer, particularly for the folding shape that the stems assume as they approach the upper and lower eyes. The head often has a short peg-box surmounted by a powerful volute sculpted with confidence and elegance. Pietro Giacomo, similarly to his father Giovanni Battista, is also highly appreciated for his cellos.
