The reign of Pope Boniface VIII is a tapestry of papal agendas fashioned for the creation of empire under the guise of the Holy Roman Church. His papacy materializes as kingship rather than pure Apostolic See. The papacy is a relic of the spiritual body. Empire is the incarnation of the secular body. The disparity between the two- spiritual and secular- forms the crux of the matter.[1] His method: war.
The times of Boniface saw the death knell to any form of civil interaction between the once united Parte Guelfa (“Guelfs”) which disintegrated into factions holding the popular names of White Guelfs and Black Guelfs. The political turbulence was in a chaotic phase that moved like wildfire through the comune of Florence and surrounding city-states. Although the pope made attempts to heal these gaping wounds he was unable to bring to the fore his temporal power and apostolic authority to reconcile broken families and divided cities. Even though Pope Boniface was hailed as the vicar of Christ the politics surrounding his apostolic authority did not always yield to his will. Eventually, the political strain ended in his demise. In his effort to expand the power of the pontifical office and papal state Boniface sought a much stronger temporal power most distinctively heralded in his comment that “I am Caesar—I am Emperor.”[2]
Bruni chronicles the early conflict of the Guelf and Ghibelline factions noting that there were those whose favor went to the popes while others favored the emperors. Later, Boniface was visited by a large entourage of barons and wrote a letter regarding Giano della Bella which altered the course of the conflict. Boniface was the first to reintroduce the celebration of Jubilee in 1300 and struck a mercenary deal with Jean de Chalon of Champagne France. One of the most telling statements of the work of Pope Boniface is Compagni’s conclusion that the pope ruled the church as he saw fit even amid nascent evil and peace accords. There were times when subjects implored Boniface to change his mind to mend the Florentine situation. And he did. Then, later he was persuaded to break the power of the Florentines.
Men harbored great fear of the pope due substantially to the harsh charges he levied against them accompanied with his henchmen who rode into the comune full of war-like vigor. Mercenaries executed his will becoming ambassadors of the pope’s words. His lucid points of view are openly displayed when he commented, “I do not want to lose men to weak women”[3] and he responded to Charles saying he had “put him in the foundation of gold.”[4] Boniface reminds men to be men of virtue, or strength. He was opposed to a man being forfeited from his strength by a weak woman. He reminded Charles that he owed his kingship to the good graces of his papa.
The request to treat the White Guelfs badly are examples of the draconian stories of Boniface recorded by Compagni and Bruni. Compagni records that Boniface died enraged at the continued thwarting of his plans. Even in death those who haunted him attempted to mark him a heretic. The initiation of his papal reign began after the short lived papacy of Celestine.[5] Later when a bishopric became available he was wrongfully accused of selling that bishopric for personal gain. He consorted with men who treated other men very badly. Bruni’s commentary on the Holy Roman Church and Holy Roman Empire is enlightening for views of the republic amid foreign warfare.[6]
Florence was the hub of Etruscan civic agitation during the incumbency of Pope Boniface whose presence was felt throughout the comune.[7] He was a persona that altered the course of history. Central to this investigation is the interplay of the Papal Court and Empire juxtaposed to factional strife between the Guelfs and Ghibellines, White and Black Guelfs, and the Black Guelf alliance with the Ghibellines in opposition to the White Guelfs.[8] A closer look at Pope Boniface VIII reveals a man of great strength and power who wielded his power to garner as much strength as was his to gain during his reign in the papal office. He was, in effect, a man of war. Yet the wars he fought were not waged by swords alone, but through a shifting network of alliances, rivalries, and political calculations. To see the landscape of power in which Boniface moved, Figure 1 charts the major factions, their loyalties, and the changes in alignment during his reign.
Figure 1. Faction–Relationship Map of the Florentine crisis during the reign of Pope Boniface VIII (1294–1303).
Political Turbulence and Demotic Names
The year 1300 was full of “political turbulence [that] once again swept through Florence, possibly the greatest that had yet taken place.”[9] The conflict began as such: “In Pistoia in that period there was a flourishing clan, famous for its numbers as well as its riches.”[10] The clan was the Cancellieri family. Named such “in the native tongue, after the founder of the clan.”[11] Disharmony set in separating members of this family. They had gone their own ways. Now serious animosity and feuding “had driven them to blows and bloodshed.”[12] Bruni concludes,
Having stained and polluted themselves with the blood of their relatives, they had made the whole city divide itself up into factions favoring one side or the other, and (as usually happens) the factions were given demotic names: one was called the Whites, the other the Blacks. When, thanks to these factions, matters had reached a critical state in Pistoia, the Florentines became concerned and set about controlling in any way they could the disease that had now burst into the open. They decided the best thing to do, to cool things off, would be to remove the heads of the factions.[13]
Having stained and polluted themselves with the blood of their relatives, they had made the whole city divide itself up into factions favoring one side or the other, and (as usually happens) the factions were given demotic names: one was called the Whites, the other the Blacks. When, thanks to these factions, matters had reached a critical state in Pistoia, the Florentines became concerned and set about controlling in any way they could the disease that had now burst into the open. They decided the best thing to do, to cool things off, would be to remove the heads of the factions.[13]
The blood feuds so characterized by Bruni in this text were the opening salvos of clan feuding that endured during the thirteenth (trecento) and fourteenth (quattrocento) century Renaissance of Florence.[14] The “political turbulence” led to a frenzy of fighting that ruptured the very fabric of life in the comune. Family strife had far reaching implications within empire and church. The battle lines were drawn. The foundation was laid for the common man to become foot soldiers in the execution of plans for both pope and king. Common man was pitted against one another in an abrasive battle with the powerful citizens who aligned with either the Holy Roman Church or Holy Roman Empire. Herein lies the heart of the political turbulence of the Italian Renaissance.
Bruni notes that the Guelf factions of Pistoia were given “demotic names.”[15] A demotic name referred to a dialectal, or common, term in use at that time. While this terminology may be easily overlooked in reading the text, it appears that the wording reveals much regarding the origin of the party and its strife. Limited historical information is recorded pertaining to the origin of the terms “White” and “Black” associated with the Guelf Party. No evidence suggests that this designation is related to ethnic distinction. This is more likely a reference to a popular perception of the two factions. The “White” designation refers to the good, or divine, and the “Black” refers to the bad, or demonic. Bruni was a White Guelf. From the perception of Bruni, for example, who, being a White Guelf, relays the demotic names of those who were termed “White” and “Black” due to the historian’s loyalty at the writing of these words. Many years had passed prior to the authorship of Bruni’s History. The terms “White” and “Black” would have been acknowledged names for the parties at that juncture. For Compagni, the designation of the names to the factions was a contemporary to the authorship of his work.. He lived during the time of the name designation. Whatever the origin of “White” and Black” as names associated with the parties, the text reveals that these names were common in the vernacular of the day.
Matters reached a boiling point in Pistoia. Florentine officials saw the damage from the strife inflicted on their sister city. The Florentines decided to take preventive action. Bruni refers to the conflict among the factions as “disease.”[16] The disease “burst into the open” for all to see the irreparable damage done to the comune of Pistoia.[17] It was a matter of time until the disease spread to Florence which was only seven hours away by foot.
The leaders of Florence determined to solve their Ghibelline concern by removal of “the heads of the [Florentine] factions” with the hope of cooling things off.[18] Their efforts were helpless to stop the mercenary agendas of both the White and Black parties. The only remedy was to allow the disease to run its due course.
The Politics of Apostolic Authority
Even amid the harsh family conflict between the White and Black factions a confederacy of enemies prepared for war. That league was known as the Ghibelline faction. The Parte Guelfa being a house divided among itself was weakened. Regarding the Florentine leaders Bruni comments,
Fearing that this lasting breach between their party members would eventually resurrect the local Ghibelline faction, the leaders of the Guelf Party turned to Boniface VIII for help, begging him to remedy this potential- or rather nascent- danger with his apostolic authority. The pope’s efforts were in vain, and even harsher conflicts followed. The hatred grew so virulently that arms were often taken up. Eventually the faction called the Blacks could no longer tolerate their enemies’ political supremacy. They could not stand to see their enemies almost inevitably elected to all city offices.[19]
Of interest is the “lasting breach.”[20] Bruni offers a textual hint alerting the reader to the length of term of the conflict. The breach was long-term, even indefinite. Contextually, it is noted that the disconnect between Guelf Party and the “local Ghibelline faction” was far from new. The breach was enduring. The intensity of the present situation ran the risk of resurrecting what might have been viewed as a disease in remission. Upon this concern the leaders justified their next decision. That decision: retaliate.
Note the term “resurrect.” The long-term, enduring strife between the Guelfs and Ghibellines supports the idea of the potential resurrection of an old issue. The Guelf house sorely divided displayed their broken alliance for all to see. This nascent breach opened Pandora’s box which eventually led to the return of the Ghibelline faction. In a time when Parte Guelfa was weakened the Ghibellines took advantage of the rift. Seeing the handwriting on the wall the “leaders of the Guelf Party turned to Boniface VIII for help” because of fear for the inevitable.[21] The communal strife in Florence set the stage for greater political involvement of the papacy and the empire.
The papacy represented the spiritual milieu while empire represented the non-spiritual, or secular.[22] The Ghibelline faction had a proclivity toward empire while the Guelf party had a tendency toward the papacy. Due to the ongoing strife within the Guelf Party an opportune time arose for an alliance to be created that was even stronger than had been made in the past. With foreboding in their minds, the Guelf leaders sought favor with Pope Boniface was the vicar of Christ and the direct spiritual descendant in the papal lineage of St. Peter. This was not enough. They desired the military strength of the Papal Court and her allies. Bruni here describes the narrative of how the Guelf party fell apart but does not describe the breach between Parte Guelfa and Ghibellines. The rift between Guelf and Ghibelline was far older than the nascent split of the Guelf Party.
The age old strife between Guelf and Ghibelline caused great concern among the prominent men of Florence. The Guelf Party was the predominant political party in Florence.[23] The Ghibelline question had apparently been in check until the issue of class struggle occurred resulting in the White and Black factions.
The men begged Pope Boniface to step into the conversation imploring him to “remedy this potential- or rather nascent- danger with his apostolic authority.”[24] Manetti’s commentary sheds tremendous light on a most difficult situation that had emerged for the leaders of the Guelf Party. What had previously been somewhat innocuous had become a potent threat to the very existence of the Florentine comune. Manetti states first that this was a “potential” danger. Then added edits to his commentary to say that the potential danger was actually a nascent, or emerging, threat for the Florentine people.
The Guelf Party leaders argued for protection from the pope based upon his “apostolic authority.” The idea of “apostolic authority” opens another layer of thought regarding the cultural intonation of the day. Of all authorities that could be appealed to, the Guelf Party leadership appealed to the most deeply held authority of the day within the realm of the Catholic Church, the Pope. Apostolic authority undergirded the spiritual supremacy of the papacy in distinction from any other spiritual or temporal power in the world. Temporal power united with the spiritual power ultimately represented spiritual dominion in the court of God and man.
Even though the pope’s influence was expansive he was unable to calm the approaching storm. Rather than calming the waters, the conflicts became even harsher. What once had been a conflict among a few families became a deep hatred for one another. This hatred “grew so virulently that arms were often taken up.”[26] War erupted. The Guelf Party once united divided into an irreparable breach. The old Guelf Party retained the loyalty of the new Guelf Party in the form of the Whites. The Black Guelf Party “could no longer tolerate their enemies’ political supremacy” which led to an ever increasing level of violent behavior.[27]
Figure 2 offers a political mapping of relationships among the papacy, the White and Black Guelfs, and the Ghibellines. The papacy (Boniface VIII) claims universal spiritual supremacy that extends over temporal rulers (“I am Caesar—I am Emperor”), while the Holy Roman Empire insists on imperial rights and independence from papal control, including certain ecclesiastical rights. So the core division is spiritual supremacy vs. imperial autonomy—i.e., whether popes could command emperors or emperors could govern (and influence church matters) without the pope.
I am Caesar. I am Emperor.
According to the papal theory in Catholic theology, the Pope alone was God’s spiritual representative on earth. His was a unique and direct intercessory role of a man elected by God to be the divine representative upon earth. The Emperor received his authority to maintain his throne from St. Peter’s successor, the Pope. This distinction was most notably established during the reign of Pope Boniface VIII.
Flick noted,
For historical proof of the genuineness of this position attention was called to the power of the keys, the Donation of Constantine, the coronation of Pepin, the restoration of the Empire in the West. … It was upheld by Nicholas I., Hildebrand, Alexander III., Innocent III., and culminated with Boniface VIII at the jubilee of 1300 when, seated on the throne of Constantine, girded with the imperial sword, wearing a crown, and waving a sceptre, he shouted to the throng of loyal pilgrims: “I am Caesar—I am Emperor.”[28]
The differences between the two authorities are summarized in the following table.
| Aspect | Papacy (Boniface VIII) | Holy Roman Empire |
|---|---|---|
| Source of Legitimacy | Apostolic succession from St. Peter | Coronation by Pope; imperial tradition |
| Primary Goal | Spiritual supremacy over temporal rulers | Maintain imperial rights and independence from papacy |
| Allies | Guelfs (esp. Blacks); pro-papal states | Ghibellines; anti-papal states |
| Key Conflict Point | Papal claim to authority over emperors | Imperial claim to control over certain church rights |
Note. Comparative overview of papal and imperial authority during the late 13th–early 14th century.
Flick offered as “proof of genuineness” the sources of papal authority over empire by appealing to past decisions and accepted tradition. To gain “historical proof of this position” one needs simply to look to “the power of the keys” to the kingdom given to St. Peter and the following proofs as asserted in the text. The proof was upheld by certain leaders associated with the Holy Church: Nicholas I, Hildebrand, Alexander III, Innocent III and brought to its fullness under Pope Boniface VIII.[29] To display in all his glory the culmination of the papal authority over empire, Boniface engages the celebration of Jubilee in 1300 to show his domination. While sitting upon the “throne of Constantine” with the imperial sword, crown, and scepter all in proper regalia he shouted that “I am Caesar- I am Emperor” denoting his power over all mankind.
Some Favored Popes, Some the Emperors
The struggle leading to a bold statement by Pope Boniface VIII alleging that he is Caesar and Emperor had its origin centuries earlier. There were ongoing conflicts between the Roman Pontiffs and the Emperors. These conflicts led to local wars and quarrels. On the origin of the conflict between the Guelf and Ghibelline factions Bruni stated,
The many disputes between the Roman pontiffs and emperors brought plentiful tinder to our local wars and quarrels. For the empire which began with Charlemagne and was founded mainly for the protection of the Roman church, once it was, as we have explained, transferred to Germany, fell into the hands of successors whose main purpose in life seemed to be the persecution and overthrow of the popes. What had once been a source of security became a vortex of evil. The cause of the hostility was essentially that the popes tried to hold on to certain ecclesiastical rights while the emperors tried to usurp them on the basis of outmoded prerogatives. Against the emperors the popes therefore directed the strongest possible condemnations and censures, which at the time were their only arms, and urged cities and princes to oppose the imperial excesses, threatening them with heavy punishments if any of them should obey the emperor's edicts. The emperors, terrible in arms, marched against them. As the facts of the dispute remained ambiguous, attitudes varied; some favored the popes, some the emperors.[30]
The age old conflict between the Guelfs and Ghibellines originated in 800. The conflict mentioned by Bruni is dated as 1300. The Parte Guelfa was divided in the White and Black factions during the fourteenth century (trecento). It was fully alive in the early fifteenth century (quattrocento). The breach between the Guelfs and Ghibellines was a five hundred year old problem. The leaders of the Guelf Party were concerned that the breach between the Whites and Black would renew the conflict between the Guelfs and Ghibellines. The leaders were correct. The Black Guelf faction migrated toward the Ghibelline faction.
The empire begun with Charlemagne was founded to protect the Roman church. It’s purpose was not to be in conflict with the Holy Roman Church but to be a support for the ongoing preservation of the Papal State. Yet, when time passed and the power of the empire was transferred to another generation in Germany, the intent of the successors was to persecute and overthrow the popes. An occasion borne of protection became the engine for persecution. Or, as Bruni concludes, “a vortex of evil.”[31]
The hostility originated over a question of ecclesiastical rights. With arms to conquer the new enemy, the emperors became the aggressors through condemnations and censures. Pope Boniface declared that the office of pope was the single most powerful vicar and king in the known world. In short, Boniface declared himself the most powerful vicar and king. This is the assertion that the Holy Roman Church had supplanted the Holy Roman Empire. It is upon this background that the White Guelf Party appealed to him to exercise his apostolic authority to protect Florence against the Black Guelf Party. The White Guelfs petitioned for a declaration of war.
To clarify how the balance of power shifted, Figure 1 charts relative influence among three poles—the Papacy/Black Guelfs, the White Guelfs, and the Ghibellines aligned with the Holy Roman Empire (HRE)—from 1299 to 1303. Higher bands signal greater leverage in Florentine affairs, with callouts marking key inflection points (the 1300 Jubilee, Valois’s arrival in 1301, the Blacks’ ascendancy in 1302, and Anagni in 1303).