Writ of Holy Roman Emperor, Louis IV [Present-day Holland]: “Louis, the Bavarian, permits Duke Reinald von Gelcern to keep Jews in his castles, cities, and villages […] and to collect from them the common levies.” [Researcher’s note: The above is a translation of a German summary of the old Latin text, which can be found in Niyhoff’s Gedenkwaardighede uit de Geschiedenis van Gelderland (Memories from the history of Gelderland); Volume 1.]
Regesten zur Geschichte der Juden in Deutschland während des Mittelalters. Bearbeitet von Dr. M. Wiener. Erster Teil. (Regesta regarding the history of Jews in Germany during the Middle Ages. First Part.); (Hannover; 1862); Researched and Translated by Ziba Shadjaani 8/17/2020