Ephraim ben Isaac of Regensburg

Ephraim ben Isaac of Regensburg
Personal life
Born
Ephraim ben Isaac

1110
Died1175
Parent
  • Rabbi Isaac ben Abraham (father)
Religious life
ReligionJudaism

Ephraim ben Isaac ben Abraham of Regensburg (Hebrew: אפרים בן יצחק מרגנסבורג; c.1110  1175) also sometimes called Ben Yakir, was a 12th-century German tosafist and liturgical poet who was known for his keen intellect, his numerous piyyutim and for controversy refusing to recognize any post-Talmudic authority.