R. Judah Yidel Rosenberg (1864-1936) was born in Poland. A rabbi, prolific writer, and Torah scholar he served as rabbi of Tarlow, Lodz, and Warsaw where he was a Rabbinic Judge. In 1913 he immigrated to Canada, where he was active part in the Jewish community. At first he served as a rabbi in Toronto and, toward the end of his life, in Montreal. Initially, he published novellae and discussions on the Talmud, responsa, and halachic rulings of period interest. Through the years he authored a compilation and translation of the book of the Zohar, a work that has become a classic still in use today. He published books on medical remedies and Amulets. However it is his activities for the religious youth, by enriching the religious library with historical literature in Hebrew and Yiddish using simple vocabulary suitable for the youth that brought him fame. His most famous books are the ones with historical stories that he claimed to have discovered in ancient manuscripts in the old imperial library in Metz. Most of the books were published in Hebrew and Yiddish as well. Many doubt the validity of these manuscripts, many articles were written against these books, indeed, a whole book was published opposing the famous stories of the Maharal of Prague which he printed.

חלק מהחומר שבאנטולוגיה זו המציא כנראה רוזנברג בעצמו. עיין: מ' בר-אילן, נפלאות ר' יהודה יודל רוזנברג, עלי ספר, יט, תשס"א, עמ' 183-182.