All documents associated with the event
The Jewish Pope
Shimon HaGadol of Mainz and Elchanan by legend the Jewish Pope, -
Elchanan by legend the Jewish Pope, - and Shimon HaGadol of Mainz
(Sources: The Artscroll Rishonim, p.117; Rashi to Shabbat 85b
and Eruvin 42a; Machzor Korban Aharon: Mavo Hapiyutim...
Shimon HaGadol of Mainz
"The World That Was ASHKENAZ - The legacy of German Jewry 645 - 1945" by Rabbi A. Leib Scheinbaum page 32-33