R. Issachar Baer Eilenburg, Polish rabbi; born in Posen about 1570; died in Austerlitz, Moravia, in 1623. His father gave him a thorough training in the Talmud. From Posen Eilenburg went to Prague and entered the yeshibah of Rabbi Liva. After studying there for a few years, he returned to Posen and continued his studies in the yeshibah of Rabbi Mordecai Jafe. About 1600 Eilenburg became rabbi of the city and district of Göritz, and about 1620 rabbi of Austerlitz, Moravia. R. Eilenburg also wrote "Zedah la-Derek," supercommentary on Rashi to the Pentateuch (Prague, 1623-24).
עם ההסכמות שבאו בדפוס הראשון והסכמות חדשות מאת ר' נפתלי הכהן , ורנקבורט דמיין, כט אייר תס"ט; ר' שלמה אאליון, אמשטרדם, כז אייר תס"ט; ר' יהודא ליב [ב"ר דוד], אמשטרדם, א טבת תס"ט.