Jacob ben Natronaï, Gaon of Sora, [184] ff.
Jacob ben Nissim, [211], [232] ff.
Jacob ben Samuel, pupil of Saadiah, [204].
Jacob ben Sheshet Gerundi, Kabbalist, [556].
Jacob Tam, [375]–[81].
character of, [376].
commentary of, to the Talmud, [376].
death of, [381].
descendant of Rashi, [375].
maltreated by the crusaders, [355].
poetry of, [376].
Tossafist, [343], [345], [375].
Jannai, poetan, introduces rhymes into Neo-Hebraic poetry, [116].
Jayme, king of Aragon, treatment of the Jews by, [536].
Jean d'Acre. See [Accho].
Jehuda ben Abbas of Haleb, poet, [426].
Jehuda ben Sabbatai, poet, [559].