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].