John of Capua
John of Capua (fl. 1262-1269) was an Italian Jewish convert to Christianity, and a translator. He translated Rabbi Joel's Hebrew version of Kalilah wa-Dimnah into Latin under the title Directorium Vitae Humanae. His translation was the source from which that work became so widely spread in almost all European languages. It was edited by Joseph Derenbourg (Paris, 1887). John of Capua also translated Maimonides' Dietary and Ibn Zuhr's (Avenzoar's) Al-Taisir, on diseases.
References
This article incorporates text from a publication now in the public domain: Executive Committee of the Editorial Board and Joseph Jacobs (1901–1906). "John of Capua". Jewish Encyclopedia.