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Pope Joan
Pope Joan was a legendary female pope of the Middle Ages said to have reigned from 855 to 858. After her story was popularized by Italian writer Giovanni Boccaccio (1313-1375), a statue of her was placed alongside those of other popes at...
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Robert Guiscard with Pope Nicholas II
Robert Guiscard (c. 1015-1085) is proclaimed Duke of Apulia, Calabria, and Sicily by Pope Nicholas II, illustration from the Nuova Cronica of Giovanni Villani, 14th century.
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Martin Luther's 95 Theses
Martin Luther's 95 Theses of 31 October 1517, although they have since come to represent the beginning of the Protestant Reformation, were not written to challenge the authority of the Roman Catholic Church but were simply an invitation to...
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The Ideology of the Holy Roman Empire
"The Holy Roman Empire was in no way holy, nor Roman, nor an empire," wrote Voltaire, and this interpretation still dominates the popular imagination, so the Holy Roman Empire is treated as a bad joke, a pale parody of the glory of Rome...
Definition
Frederick II
Frederick II (l. 1194-1250 CE) was the king of Sicily (r. 1198-1250 CE), Germany (r. 1215-1250 CE), Jerusalem (r. 1225-1228 CE), and also reigned supreme as the Holy Roman Emperor (r. 1220-1250 CE). He was born in Jesi in 1194 CE but spent...
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Chain Tower and Saint Nicholas Tower
Chain Tower and Saint Nicholas Tower, La Rochelle, France.
Definition
Investiture Controversy
The Investiture Controversy, also referred to as the Investiture Contest or Investiture Dispute, was a conflict lasting from 1076 to 1122 between the papacy of the Catholic Church and the Salian Dynasty of German monarchs who ruled the Holy...
Definition
Donation of Constantine
The Donation of Constantine (Donatio Constantini or the Donatio) is a medieval forgery dated to the 8th century purporting to be an original 4th-century document in which the Roman emperor Constantine the Great (r. 306-337) granted supreme...
Definition
Diet of Worms
The Diet of Worms (January-May 1521) was the assembly convened by Charles V, Holy Roman Emperor to address, among other issues, the works of the reformer Martin Luther (l. 1483-1546) who openly criticized the Church. Luther was told to recant...
Definition
Council of Clermont
The Council of Clermont in central France was held in November 1095 and witnessed Pope Urban II's (r. 1088-1099) historic call for the First Crusade (1095-1102) to capture Jerusalem for Christendom from its Muslim occupiers. The Pope's speech...