Donation of Constantine

The Donation of Constantine is a forged imperial document claiming that Emperor Constantine granted Pope Sylvester I authority over Rome and the western territories. Its claims shaped medieval arguments about papal power before Renaissance scholars exposed it as a forgery.

Pope Sylvester I: Pope from 314 to 335, during the reign of Constantine I. The document presents Sylvester as Constantine’s recipient of imperial privileges.
Roman Curia: The administrative institutions that assist the pope in governing the Catholic Church. The forgery’s claims concern authority exercised through the papal government.
Papal States: Territories in central Italy ruled by the pope from the eighth century until Italian unification. The alleged grant became one argument used to support papal rule over land.
Constitutum Constantini: The Latin text commonly known in English as the Donation of Constantine. This is the document’s Latin title, used in scholarly discussion.
Constantine the Great: Roman emperor from 306 to 337 who legalized Christianity and founded Constantinople. The forgery attributes its supposed grant to Constantine.
Papal primacy: The doctrine that the bishop of Rome holds supreme authority within the Catholic Church. The document magnifies the pope’s ecclesiastical standing alongside its territorial claims.
Investiture Controversy: A conflict between popes and secular rulers over appointing bishops, especially in the eleventh and twelfth centuries. The Donation’s theory of papal authority resonated with disputes over church and royal power.
Constantinian Donation: A name for the alleged transfer of imperial privileges described in the Donation of Constantine. The supposed act of donation is distinct from the forged document that narrates it.
Medieval Latin: The forms of Latin used in Europe during the Middle Ages. Its vocabulary and language helped date the document to centuries after Constantine.
Papal temporal power: The pope’s authority as a secular ruler over territory and political affairs. The supposed grant makes secular dominion a central part of its claim.

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