Pope/Political role

== Political role ==
Though the progressive Christianisation of the Roman Empire in the fourth century did not confer upon bishops civil authority within the state, the gradual withdrawal of imperial authority during the fifth century left the pope the senior imperial civilian official in Rome, as bishops were increasingly directing civil affairs in other cities of the Western Empire. This status as a secular and civil ruler was vividly displayed by Pope Leo I's confrontation with Attila in 452. The first expansion of papal rule outside of Rome came in 728 with the Donation of Sutri, which in turn was substantially increased in 754, when the Frankish ruler Pippin the Younger gave to the pope the land from his conquest of the Lombards. The pope may have utilized the forged Donation of Constantine to gain this land, which formed the core of the Papal States. This document, accepted as genuine until the 1400s, states that Constantine I placed the entire Western Empire of Rome under papal rule. In 800 Pope Leo III crowned the Frankish ruler Charlemagne as Roman Emperor, a major step toward establishing what later became known as the Holy Roman Empire; from that date onward the popes claimed the prerogative to crown the Emperor, though the right fell into disuse after the coronation of Charles V in 1530. Pope Pius VII was present at the coronation of Napoleon I in 1804, but did not actually perform the crowning. As mentioned above, the pope's sovereignty over the Papal States ended in 1870 with their annexation by Italy.
Popes like Alexander VI, an ambitious if spectacularly corrupt politician, and Pope Julius II, a formidable general and statesman, were not afraid to use power to achieve their own ends, which included increasing the power of the papacy. This political and temporal authority was demonstrated through the papal role in the Holy Roman Empire (especially prominent during periods of contention with the Emperors, such as during the Pontificates of Pope Gregory VII and Pope Alexander III). Papal bulls, interdict, and excommunication (or the threat thereof) have been used many times to increase papal power. The Bull Laudabiliter in 1155 authorized Henry II of England to invade Ireland. In 1207, Innocent III placed England under interdict until King John made his kingdom a fiefdom to the Pope, complete with yearly tribute, saying, "we offer and freely yield...to our lord Pope Innocent III and his catholic successors, the whole kingdom of England and the whole kingdom of Ireland with all their rights and appurtenences for the remission of our sins".Quoted from the Medieval Sourcebook The Bull Inter caetera in 1493 led to the Treaty of Tordesillas in 1494, which divided the world into areas of Spanish and Portuguese rule. The Bull Regnans in Excelsis in 1570 excommunicated Elizabeth I of England and declared that all her subjects were released from all allegiance to her. The Bull Inter Gravissimas in 1582 established the Gregorian Calendar.See selection from Concordia Cyclopedia: Roman Catholic Church, History of
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