“Special Taxation of Jews” issued by Pope Sixtus IV [Papal States; Present-day Italy] [Unconfirmed]
Commentary from other sources:
1) Orders taxation of Roman Jews at a tithe during the Turkish war, and the carnival tax of 1,100 gulden.
A Descriptive Record of the History, Religion, Literature, and Customs of the Jewish People from the Earliest Times to the Present Day; The Jewish Encyclopedia