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Temporal power of the Holy See

Political and secular governmental activity of the popes of the Roman Catholic Church

  • 6 min read
  • 3 chapters

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Origins

Patrimony of Saint Peter

The Lateran Palace was the first significant acquisition of the Holy See, most probably a gift from Constantine the Great. The example of Constantine was followed by wealthy families of the Roman nobility, and the residences and estates that were acquired in turn were designated the Patrimonium Sancti Petri. After the deposition of the last Roman emperor in the West in 476, the popes were subjects, first of Odoacer, then Arian Ostrogothic kings, then of the Byzantine emperors, who ruled their Italian territories via a governor called an exarch, stationed in Ravenna.

Pope Gregory II's defiance of the Byzantine Emperor Leo III the Isaurian as a result of the first iconoclastic controversy (726 AD) in the Byzantine Empire, widened the growing divergence between the Byzantine and Carolingian traditions in what was still a unified European Church. This, combined with Lombard military pressure to which the embattled empire could not respond effectively, eventually led to the establishment of the temporal power of the popes. The Duchy of Rome was an imperial territory under the Exarchate of Ravenna. With the waning of Byzantine control in the Italian peninsula, more of the management of the area fell to the popes.

Donation of Pepin

In 751 the Exarchate of Ravenna fell to Lombard King Aistulf. Five years later, Pepin the Short of the Franks defeated the Lombards and granted the lands of the Duchy of Rome as well as territory ceded by the Lombards to the Papacy in what is referred to as the Donation of Pepin, marking the true beginning of the Papal States. The area conferred upon the pope included the territory belonging to Ravenna, even cities such as Forlì with their hinterlands, the Lombard conquests in the Romagna and in the Duchy of Spoleto and Benevento, and the Pentapolis (the "five cities" of Rimini, Pesaro, Fano, Senigallia and Ancona). Narni and Ceccano were former papal territories.

However, the medieval Popes were unable to exercise effective sovereignty over these extensive and mountainous territories, given the recalcitrance of their vassals.

For over a thousand years popes ruled as sovereign over an amalgam of territories on the Italian Peninsula known as the Papal States, from the capital, Rome. In 1274 the Comtat Venaissin came under Papal control, followed by Avignon in 1348.

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