Temporal power (Papal)

The temporal power of the popes is the political and secular governmental activity of the popes of the Roman Catholic Church, as distinguished from their spiritual and pastoral activity.

Pope Gregory II's defiance of the Byzantine emperor Leo III the Isaurian as a result of the iconoclastic controversy in the Eastern Empire prepared the way for a long series of revolts, schisms and civil wars that eventually led to the establishment of the temporal power of the popes.

The temporal power was abolished by Napoleon Bonaparte, who dissolved the Papal States and incorporated Rome and Latium into his French Empire. The temporal power was restored by the Great Powers at the 1815 Congress of Vienna. The Napoleonic civil laws were abolished, and most civil servants were removed from office. Popular opposition to the reconstituted corrupt clerical government led to numerous revolts, which were suppressed by the intervention of the Austrian army.

In November 1848, following the assassination of his minister Pellegrino Rossi, Pope Pius IX fled Rome. During a political rally in February 1849, a young Roman priest, the Abbé Arduini, described the temporal power of the popes as a "historical lie, a political imposture, and a religious immorality." On 9 February 1849, the newly elected Roman Assembly proclaimed the Roman Republic. Subsequently, the Constitution of the Roman Republic abolished the temporal power, although the independence of the pope as head of the Catholic Church was guaranteed by article 8 of the "Principi fondamentali".

At the end of June 1849, the Roman Republic was crushed by 40,000 French troops sent by Louis Napoleon Bonaparte (later Napoleon III), at the urging of the ultramontane French clerical party. The temporal power was restored and propped up by a French garrison.

...
Wikipedia