Rabbi at Nuremberg toward the end of the fourteenth century. In 1406 Rabbi Israel went to Nuremberg and taught there, at first together with Koppelmann. Afterward they had a controversy, which Rabbi Jacob Weil, interfering, strongly urged the council of the Jewish community to end. Thereupon the latter settled the question by deciding that the two rabbis should lecture on alternate days, the pupils to have the right to attend the lectures of either. The peace, however, does not appear to have been of long duration; for in 1412 a "Koppelmann, son of the schismatic," was forever banished from the city.
- Barbeck, Gesch. der Juden in Nürnberg und Fürth, pp. 20, 23;
- Liḳḳuṭe Mahril, ed. Hanau, 1730, p. 71a;
- Jacob Weil, Responsa, pp. 151, 163;
- Israel Iserlin, Responsa, ii. 120.