Oct. 19, 1255

Constitution of the Synod of Valencia [Present-day Spain]: “No cleric shall serve as a guarantor to a Jew or pledge chalices, vestments, altar cloths or books to Jews.”
Grayzel, Solomon. The Church and the Jews in the XIIIth Century, Volume II (1254-1315). The Jewish Theological Seminary of America: New York, 1989. Page 276. Researched by Dominik Jacobs 11/22/2019