May 7, 1288

Decretal to the Papal Inquisitors, issued by Pope Nicholas IV [Present-day France, Italy and Germany]: “One must proceed against Christians who adopt or revert to the rites of the Jews, even if they were originally baptized as infants or under fear of death—although they were not absolutely or precisely compelled to baptism—as one would proceed against heretics who had confessed or been convicted on the testimony of Christians or Jews. One should proceed against abettors, receivers, and defenders of these people as one proceeds against abettors, receivers, and defenders of heretics.”
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 165. Researched by Dominik Jacobs 9/15/2019