ISAAC (EISAK) BEN JOSHUA BEN ABRAHAM OF PRAGUE:
Physician and parnas of Prague in the sixteenth century. He was the author of "'Olat Yiẓḥaḳ" a collection of ritual laws arranged after the Arba' Ṭurim of Jacob ben Asher. They are in the form of 843 problems or riddles, in one hundred chapters (Prague, 1606).
- Benjacob, Oẓar ha-Sefarim, p. 432;
- Fürst. Bibl. Jud. ii. 142;
- Steinschneider, Jewish Literature, p. 217;
- idem, Cat. Bodl. col. 1129;
- Zunz, Z. G. p. 283.