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Pope Innocent III (1198–1216) was the most powerful of the medieval popes, and his pontificate represents the zenith of the medieval papacy. Innocent was a brilliant theologian and canon lawyer, and he brought a sophisticated intellectual apparatus to the papal office. He claimed supremacy over all earthly rulers, he intervened decisively in the politics of Europe, he launched the Fourth Crusade and the Albigensian Crusade, he convened the Fourth Lateran Council, and he issued a series of decrees that shaped the Church for centuries. The pontificate of Innocent III was the high point of the medieval papacy, and it was the model for the later claims of the popes to universal authority.
The standard English-language treatment is Walter Ullmann, “The Pontificate of Innocent III” (1969) and the more recent Brenda M. Bolton, “Innocent III: Studies on Papal Authority and Pastoral Care” (Aldershot, 1995). The English-language correspondence of Innocent III is in C. R. Cheney and W. H. Semple, Selected Letters of Pope Innocent III concerning England (1953).
The Election of Innocent III
Innocent III (1160/1161–1216) was born Lotario dei Conti di Segni, and he was a member of one of the great noble families of Rome. Lotario was educated at Paris and Bologna, the two leading universities of the period, and he studied theology and canon law under the most distinguished teachers of the day. Lotario was ordained a deacon in 1187, and he was created cardinal-deacon of San Sergio e Bacco by Pope Clement III in 1190. In 1191, Pope Celestine III appointed Lotario as a cardinal-bishop, and he was widely regarded as one of the most brilliant and most ambitious of the cardinals of the period.
Lotario was elected pope in January 1198, at the age of about thirty-seven. The election was unanimous and enthusiastic, and Lotario took the name Innocent III in honor of his predecessor Innocent II. Innocent was crowned on February 22, 1198, and he immediately began to exercise the papal authority in a way that was unprecedented in the history of the papacy.
Innocent’s Theory of Papal Authority
Innocent was a brilliant theologian, and he developed a comprehensive theory of papal authority that drew on the Biblical, the patristic, and the canonical traditions of the Church. Innocent’s theory of papal authority was expounded in his major works — the De Miseria Humane Conditionis (c. 1195), the De Quadripartita Specie Nuptiarum (c. 1198), and the Sermons on the liturgical feasts of the Church — and it was based on the principle that the pope, as the vicar of Christ, had supreme authority in the spiritual order and a derived authority in the temporal order.
Innocent’s theory of papal authority was expounded in his famous formula: “The pope is the vicar of Christ — yes, the successor of Peter — and he has been established as a ruler in the earth as well as in heaven. He is the father of all Christians, and he has been appointed as the lord of the whole Christian world.” This formula asserted the supremacy of the pope over all earthly rulers, and it provided the theological and canonical basis for the papal interventions of the period.
The Political Interventions of Innocent III
Innocent intervened decisively in the politics of Europe, and he exercised a major influence on the affairs of England, France, Germany, Spain, and the Crusader States. His interventions were based on the principle that the pope had supreme authority in the spiritual order and a derived authority in the temporal order, and they included the deposition and installation of kings, the arbitration of international disputes, and the promotion of the crusades.
Innocent intervened in the affairs of England in a dramatic confrontation with King John. The dispute began in 1203 over the appointment of the Archbishop of Canterbury, and it escalated into a major confrontation when John refused to accept the papal candidate. Innocent placed England under interdict in 1208, suspending all sacraments and religious services in the country, and he excommunicated John in 1209. The dispute was finally resolved in 1213, when John accepted the papal candidate and received the kingdom of England as a papal fief. The episode was a major triumph for the papacy and a major humiliation for the English crown.
Innocent also intervened in the affairs of France, Germany, and Spain. He mediated the dispute between King Philip II Augustus of France and King John of England, and he issued the arbitration of 1200 that awarded various territories to France. He intervened in the German succession dispute of 1198–1208, supporting first Otto IV and then Philip of Swabia and then Frederick II, and he excommunicated Otto IV in 1210. He received the Kingdom of Aragon as a papal fief in 1204, and he invested King Peter II of Aragon with his crown in Rome.
The Fourth Lateran Council
Innocent convened the Fourth Lateran Council in 1215, which was one of the most important ecclesiastical assemblies of the High Middle Ages. The Council was attended by over four hundred bishops, hundreds of abbots and priors, and representatives of the major secular rulers of Christendom. The Council issued seventy-one canons on every aspect of Christian life, from the obligations of priests to the requirements for a valid marriage to the procedures for the confession of sins.
The canons of the Fourth Lateran Council included provisions on the following matters: the obligation of Christians to confess their sins at least once a year; the obligation of priests to be properly trained and examined; the obligation of bishops to visit their dioceses on a regular basis; the prohibition of new religious orders; the regulation of marriage, baptism, and other sacraments; the suppression of heresy; and the organization of the Fifth Crusade. The canons of the Fourth Lateran Council remained the basis of canon law in the Latin Church until the Code of Canon Law of 1917, and they remain an important source for the history of the medieval Church.
The Crusades of Innocent III
Innocent launched the Fourth Crusade (1202–1204) and the Albigensian Crusade (1209–1229), two of the most controversial episodes in the history of the papacy. The Fourth Crusade was originally intended to recover Jerusalem by attacking Egypt, the center of Ayyubid power, but the crusade was diverted to Constantinople and ended in the Sack of the Christian city in 1204. The episode was a major shock to Christendom, and it weakened the Byzantine Empire permanently.
The Albigensian Crusade was a military campaign against the Cathars of southern France, who were accused of heresy and rejected the material Church and the sacraments. The crusade was proclaimed by Innocent in 1208, and it was led by the northern French lords with the support of the papacy. The crusade was marked by brutal episodes — the massacre at Béziers in 1209, in which the Crusaders killed an estimated 7,000 to 20,000 people, men, women, and children, Catholic as well as Cathar — and it effectively destroyed the Cathar movement as a political and social force.
The Legacy of Innocent III
The pontificate of Innocent III was the zenith of the medieval papacy, and it set the standard for the later claims of the popes to universal authority. Innocent was succeeded by a series of popes who were unable to maintain the standard of his pontificate, and the papal authority gradually declined in the thirteenth and fourteenth centuries. The Babylonian Captivity of the papacy at Avignon (1309–1377), the Great Schism (1378–1417), and the Conciliar movement of the fifteenth century all contributed to the decline of the papal monarchy, but the legacy of Innocent III remained as a model of papal authority in the later Middle Ages and the early modern period.
The legacy of Innocent III is complex and controversial. On the one hand, Innocent was a brilliant theologian and canon lawyer, and his pontificate produced a rich legacy of theological and canonical works that shaped the Western Christian tradition. On the other hand, Innocent was a ruthless politician, and his interventions in the affairs of Europe were often heavy-handed and brutal. The legacy of Innocent III is a subject of ongoing debate among historians and theologians, and it is a major subject of study in the field of medieval history.
Sources
Principal sources used in this article:
- Colin Morris, The Papal Monarchy (Oxford, 1989), pt. 2.
Further reading:
- Walter Ullmann, A Short History of the Papacy in the Middle Ages (Methuen, 1972).
For a recent single-volume synthesis with full scholarly apparatus, see the relevant chapter of Barbara H. Rosenwein, A Short History of the Middle Ages (University of Toronto Press, 2014).