“Super Gregem Dominicum” (“Super Shepherd Sunday”) issued by Pope Eugene IV [Papal States; Present-day Italy] [Unconfirmed]
Commentary from other sources:
1) Revokes the privileges of the Castilian Jews and imposes severe restrictions on them. Forbids Castilian Christians to eat, drink, live or bathe with Jews or Muslims and declaring invalid the testimony of Jews or Muslims against Christians.
Graetz, H, “History of the Jews”, Volume 4, (Jewish Publication Society of America, 1894), p. 250