“Synod” issued by Bishop Georg Schenk von Limpurg, 1506 [Prince-Bishop of Bamberg; Present-day Germany] [Provisional]: “[…] 44) Christians and Jews are not to have any fellowship with each other [… including in terms of eating and drinking], […] buying and selling or any other kind, since all of the above mentioned matters can lead to fraud and usury (‘cum verisimile sit, omnia hec supra dicta in fraudem fieri usurorum’) […]”
Eckstein, Adolf (District Rabbi): Geschichte der Juden im ehemaligen Fürstbistum Bamberg, bearbeitet auf Grund von Archivalien, nebst urkundlichen Beilagen, (History of the Jews in the Former Prince-Bishopric of Bamberg, edited on the basis of archiving, together with documented supplements); (Bamberg; 1898); Researched and Translated by Ziba Shadjaani 5/17/2018