Vaillant, John Francis Foi

, son of the preceding, was born at Rome in 16G5, while his father was upon his travels in quest of medals and antiques. He was brought to Beauvais in 1669, and at twelve years of age sent to Paris, where he was instructed by the Jesuits in the belles lettres and philosophy. He applied himself, as his father had done, to the study of physic, and was received doctor in that faculty at Paris in 1691. He was initiated into the science of medals, and would have shone like his father if his life had been spared; yet his merit was reputed very great, and he was admitted into the academy of inscriptions and belles lettres in 1702. He died in 1708, about two years after his father, of an abscess in his head, which was supposed to have been occasioned by a fall. He wrote a professional tract on the virtues of coffee, and various dissertations on the subject of medallic history, and one on the Dii Cabiri. ¹