Saturday, May 24, 2025

A History of the Popes Named Leo, Part 4: St Leo IX, and the Gregorian Reform

This is the fourth installment of a series on the thirteen papal namesakes of our new Holy Father Leo XIV; click these links to read part 1, part 2 and part 3.

The church of Rome and the papacy have usually been late-comers to the great movements of reform and renewal in the Church, and have just as often been themselves in dire need of reform and renewal. But eventually Our Lord’s prayer that Peter, being once converted, confirm his brethren, comes again to fulfillment, the papacy at last accepts the need for a reform, and becomes its most important leader. This pattern is exemplified by the career of St Leo IX (1049-54), whose papacy is the point at which Rome, so long caught up in the general decadence of the Church in the West, definitively embraced the cause of reform. To understand this, we must back up a bit and explain some history.

Pope St Leo IX heals a man possessed by a devil, an illustration from a collection of Saints’ lives known as the Passionary of Weissenau, ca. 1170-1200. (Fondation Bodmer, Coligny, Switzerland; Cod. Bodmer 127, fol. 191r; http://www.e-codices.unifr.ch/en/list/one/cb/0127. The dark blue lines across the figure of the possessed man are stiches across a tear in the folio.)
Pope St Nicholas I, who traditionally shares the epithet “the Great” with Ss Leo I and Gregory I, and is famous inter alia for his defense of the Church’s teaching on the indissolubility of marriage, died in 867 after a reign of nine years. And yet, the papacy then underwent such a rapid moral collapse that it was a distance of but thirty years and eight Popes from him to Stephen VI, whose reign of roughly sixteen months is summed up as follows in the Catholic Encyclopedia.

“Whether induced by evil passion or perhaps, more probably, compelled by the Emperor Lambert and his mother Ageltruda, he caused the body of (his predecessor) Formosus to be exhumed, and … placed before an unwilling synod of the Roman clergy. (Note: this is often referred to as ‘the Cadaver Synod’.) A deacon was appointed to answer for the deceased pontiff, who was condemned for performing the functions of a bishop when he had been deposed and for passing from the See of Porto to that of Rome. The corpse was then stripped of its sacred vestments, deprived of two fingers of its right hand, clad in the garb of a layman, and ultimately thrown into the Tiber. Fortunately it was not granted to Stephen to have time to do much else besides this atrocious deed. Before he was put to death by strangulation, he forced several of those who had been ordained by Formosus to resign their offices …”
Pope Formosus and Stephen VI - The Cadaver Synod, by Jean-Paul Laurens, 1870 (Public domain image from Wikipedia.)
After this infamous event, which has provided endless grist for the mills of anti-Catholic controversialists, the papacy remained essentially quiescent as simony, lay investiture (the de facto control of ecclesiastical appointments by lay civil rulers) and clerical incontinence became nearly omnipresent in the Church over the course of the tenth century, the first in which there is not a single canonized or beatified Pope.
Nevertheless, it is often darkest just before the dawn, and the tenth century also saw, less than 15 years after the reign of Stephen VI, the foundation of the abbey of Cluny. What made Cluny so important, especially in the 10th and 11th centuries, was the fact that the duke who founded it in 910, William of Aquitaine, renounced all control over it, in an age when monasteries were essentially the private property of the nobility, who appointed whomever they wished as abbots and officials. Given the tenor of the times, such appointments were very often made solely for the sake of providing an important connection with a salary, and with no reference to whether the man so appointed had any intention of living as a monk. Much the same applied to clerical offices of all ranks.
In the case of Cluny, however, its independence from lay control, and almost 200 years of long-lived Sainted abbots (919-1109), enabled it to become a true model of religious life, a model spread throughout Europe by innumerable daughter houses, and adopted by many older foundations.
The consecration of the third abbey church of Cluny by Pope Urban II, depicted in a manuscript of the early 12th century.
The previous article in this series covered the reigns of Leos V-VIII, all of which were fairly brief, and not much is known of them, so it gave no more than a hint of the sad state of things in Rome in their time. Suffice it to say for now that Leo V was unlawfully deposed, and Leo VIII was the successor of John XII, whose reign has traditionally been described as a “pornocracy – a reign of harlots.” And thus did things continue in Rome until the reign of another particularly unworthy successor of St Peter, Benedict IX (r. 1032-48), whom St Robert Bellarmine described as “the nadir” of the papacy, and over whose career we draw a veil, as the sons of Noah drew a veil over their father. His deposition at the hands of the Holy Roman Emperor Henry II was as unlawful as that of John XII had been, and just as impossible to regret.
His successor, Damasus II, died on the 24th day of his reign, at which point the emperor chose a kinsman, Bruno, the bishop of the French city of Toul (about 180 miles to the east of Paris), and an active and enthusiastic reformer, to replace him. From this point on, the reform party within the Church was in the ascendant, and would go from strength to strength, with the Popes very much at its fore, promoting the Cluniac ideal of religious life for all the ranks of the clergy. As a result, the clerical vices which were universal in the mid-11th century were almost entirely gone by the end of the 12th.
A notable sign of this radical volte-face was the custom of taking a regnal name, which took hold in this period, and has held ever since with almost no exceptions. Bruno of Toul was not the first to do this, but he was the first to choose the name Leo. From 1046 to 1145, thirteen of the eighteen Popes were “second of that name”, followed by eight “thirds” out of eleven from 1145 to 1227, a clear signal that after the long period of decadence, the papacy was now returning to its glorious past.
The cathedral of St Stephen in Toul; the current building was begun in the 13th century, long after Leo IX’s time.
Bruno was born in the Alsace region, which was then part of the Holy Roman Empire, in 1002; his father was a close relation of the emperors. When he was five, he was sent to the school at Toul, and upon completion of his studies, made a canon of the cathedral. In 1026, he accompanied the emperor Conrad II on a military expedition to Italy, commanding a company furnished to the emperor by his bishop. During his absence, the bishop died, and Bruno was swiftly elected to replace him, taking possession of the see on the feast of the Ascension, 1027, at the age of only twenty-five, well below the canonical age for the episcopacy. But despite his youth, he was highly successful in reforming the clergy and monks of his diocese, following the Cluniac model.
After twenty years as a model bishop, he was chosen to become Pope in the summer of 1048 by his kinsman the emperor, now Henry II. On his way to Rome, he stopped at Cluny, and where he persuaded a Roman monk named Hildebrand, who had retired there some years earlier, to join him and help him in the great project of reform; this is the future Gregory VII, the fifth pope after Leo, whose feast day is kept tomorrow.
The relics of Pope St Gregory VII, in his chapel within the cathedral of St Matthew in Salerno. (Image from Wikimedia Commons by NicFer, CC BY-SA 3.0)
Gregory’s career as a reformer was so successful that the movement as a whole is often called “the Gregorian reform” after him. But it was so because of the momentum first given to it by Leo, who brought to the see of Peter the same energetic reforming spirit with which he had governed Toul. The revised Butler’s Lives of the Saints describes his papacy as “a kind of visitation of Western Christendom in order that he might personally enforce his regulations and arouse the conscience of those in authority.” All over Italy, France and Germany, synods were held, presided over either by the pope in person, or a legate sent by him, at which the vices which had crept in were denounced, and the pattern of a reformed clerical life established. It is astonishing to consider how effective this program was, often in the face of indifference or intense opposition from both clergy and laity; all the more so, when one considers how low the reputation of the papacy had been just a few years before. For this, Leo is often called a “peregrinus apostolicus – an apostolic pilgrim”, and in this regard, laid the pattern for the rules of many of the popes who came after him, especially in the following 80 years or so.
Of course, no reformer is wholly successful in all that he attempts, and it should not surprise us to read of failures of his pontificate as well. As ruler of the papal state, he became deeply embroiled in the political affairs of Italy, and particular the problem of the oppressive rule which the Normans had established in the south. (Conflict with the Norman monarchy of Sicily would dominate the affairs of the papacy well into the 13th century.) This brought him to take to the field in arms against them, but he was defeated and captured, which weakened the prestige and the position of his own person, and of the papacy as an institution, and earned him the harsh criticism of no less a giant of the reform than St Peter Damian.
A statue of Pope St Leo IX on a public fountain in the town where he was born, Eguisheim. (Image from Wikimedia Commons by Veronique Paignier, CC BY-SA 3.0)
Likewise, his reign saw the beginning of the definitive break between Rome and Constantinople in 1054, precipitated by the violence, both literal and rhetorical, of the patriarch Michael Cerularius, and by the response of Leo’s legates to it. This matter is, of course, far too complicated to delve into in an article such as this; suffice it to note here that the mutual excommunications were issued just under two months after his death. When Leo knew that he was dying, he had his bed set up, and a coffin next to it, at the high altar of St Peter’s; he passed to eternal life on April 19, 1054. Miraculous cures began taking place at his tomb immediately, and he was formally canonized by Bd Pope Victor III in 1087.

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