“Papal Bull” (‘Ut esset Cain’) issued by Pope Innocent III and addressed to the Count Hervé de Donzy of Nevers IV [Papal States; Present-day France, Italy]: “The Lord made Cain a wanderer and a fugitive over the earth, but set a mark upon him, making his head to shake, lest any finding him should slay him. Thus the Jews, against whom the blood of Jesus Christ calls out, although they ought not be killed, lest the Christians people forget the Divine Law, yet as wanderers ought they to remain upon the earth, until their countenance be filled with shame and they seek the name of Jesus Christ, the Lord. That is why blasphemers of the Christian name ought not to be aided by Christian princes to oppress the servants of the Lord, but ought rather be forced into the servitude of which they made themselves deserving when they raised sacrilegious hands against Him Who had come to confer true liberty upon them, thus calling down His blood upon themselves and up on their children.” [Researcher’s note: The above is a translation of the original Latin text both of which can be found in the cited source.]
Rist, Rebecca: Popes and Jews; 1095-1291 (Oxford; 2016); Researched and Translated by Ziba Shadjaani 12/7/2018