John Dilworth
RUGERI, Giovanni Battista Born 1653, died 1711 Cremona Son, pupil, and assistant of Francesco Rugeri, above. Very few authenticated instruments with his label, but these seem to be very sophisticated and beautifully made in the Rugeri tradition. No particular departures in style or craftsmanship, although some with deeper red varnish than is associated with Francesco, above. Gio. Battista Rugier detto il per / fecit Cremonae Anno 16..
Cecie Stainer
Son of Francesco Ruggeri; b. in Cremona. His work is similar to that of his father, but has not the same value he made several violoncellos of large pattern rather arched, generally of plain wood and with dark brown varnish of good quality, both the sound holes and the scroll were cut wider than in Amati work. Label,’ ‘Giacinto filio di Francesco Ruggeri detto il Per 1696 ‘ ; another was dated 1692.
George Hart
The word Bon after his name refers to his having been a citizen of Bologna. Vincenzo Lancetti speaks of it being certain that he called himself Bononiensis. The instruments of this maker are of a different pattern to those of Francesco. They are higher modelled, the sound-holes less elegant, and the scroll heavier. They possess, however, high merits, and command prices nearly equivalent to those of the instruments of Francesco. The labels of this maker are sometimes met with printed in red ink. The instruments he made of large Amati pattern are highly valued. He appears to have worked from about the close of the seventeenth century. Count Cozio di Salabue and Lancetti speak of G. B. Ruggeri having worked down to 1723, and possibly later, and that he lived for many years in Brescia. There are some instruments bearing original Amati labels of this make, made, doubtless, when he was in the shop of Amati.
