Rav Isaac Stein of Gunzenhauser zt"l
הרב איזיק שטיין זצ"ל
Tishrei 1 , 5256
Rav Isaac Stein of Gunzenhauser zt"l
Rav Isaac was one of the gedolei Ashkenaz from Nurenberg who taught Torah in Gutzenhoizen. He was the author of the Biurei HaSmag.
The Chida writes in Shem HaGedolim that the Biur commentary we have is only a shorthand version of Rav Isaac’s work. He notes that he personally saw a handwritten manuscript of the longer version. (According to scholars he collected various manuscript versions of the Smag and assembled them together, subjecting proposed variants and emendations to a vote and saving the rejected notes like shivrei luchos in his copy of the Smag. The printed edition was only published some fifty years after his passing by his son AviEzri as the Nimmukim of Rav Isaac Shtein.) See https://hebrewbooks.org/20520
Rav Isaac lived during the time of the Maharik (Rav Yosef Colon) and Mahari Brona. In the year 5255 ה'רנ"ה (1495), he was exiled along with all the other Jews of his area, and they fled to Regensburg, where he passed away on Rosh Hashanah of the next year, 5256 ה'רנ"ו.

