Sylvester I

 With the American president now feuding (verbally) with the pope, and people in his orbit even threatening to pull an "Avignon papacy" on Pope Leo, it seems appropriate to dip back into early Christian history for some context on church and state and a glimpse of the ways that secular and religious rulers interacted.

Popes are first and foremost bishops of Rome, the head Christian in their city. Bishops as rulers of their flock go back to the early days of Christianity.  Most Christian denominations have bishops, including the Amish.  In the first thousand years or so AD, bishops were locally elected (as they still are in Amish communities), and they ran the Church between them.  The sense gradually increased that the bishop of Rome should be over all other bishops, just as the Roman emperors were over all kings and governors.  It helped that the bishop of Rome was supposed to be heir of Saint Peter, who was the leader of the apostles.

(The Bible makes Peter the leader of the apostles, but it doesn't put him in Rome.  Rather, he preached in Antioch. Let's not worry about that now.  After all, the basilica of Saint Peter's has his bones.  Shouldn't that be good enough?)

 

This idea of the supremacy of the Roman pontiff really started with Sylvester I (pope 314-335 AD, pictured above in a later medieval image).  He was bishop of Rome at the time of Constantine, first Roman emperor to be baptized.  His feast day is December 31, so as you celebrate New Year's Eve, be sure to dedicate a glass of champagne to Saint Sylvester, as he is now known. (Germans sometimes refer to New Year's Eve as "Silvester" in his honor.)

Pope Sylvester presided over the Council of Nicaea, called in 325 to debate the true nature of the Trinity, resulting in the Nicene Creed, still the basis of Catholic teaching (and a lot of Protestant teaching as well).  Once Constantine made it acceptable to be Christian in the Roman Empire (formerly officially pagan, in spite of including a lot of Jews, Christians, and those with various other beliefs), Sylvester started the construction of the great church now known as Old Saint Peter's, which stood until the sixteenth century, when the current Saint Peter's basilica was built in its place.

Once Christianity was tolerated out in the open, and indeed soon became the official religion of the Empire, there began to be hints of a debate that was never fully resolved:  in a Christian empire, who is the ultimate authority? the primary Christian (the pope) or the emperor?  As I've discussed before, popes really only became the effective heads of organized Christendom in the eleventh century and promptly became involved in a knock-down drag-out battle with emperors and kings which lasted on and off for four centuries.  ("Oh yeah? I depose you!" "You can't! I excommunicate you!" "So what! You're a heretic!" "No, you're the heretic!" "Oh yeah?" etc.) The squabbles between president and pope going on now have a long historical background.

Efforts by the popes to establish supremacy within the Empire did not wait for the eleventh century (much less the twenty-first).  When Constantine moved his political capitol to Constantinople in the fourth century, Pope Sylvester stayed behind in Rome.  He was probably just as glad not to have the emperor there.  Constantine after all had ordered that the Council of Nicaea be held to settle questions of the Trinity, even though he himself was not yet baptized (that happened only as he was dying). Although he didn't influence the council's outcome, he sat right there observing.

With no emperor on hand, Sylvester and his successors became the effective rulers of the city of Rome and surrounding territory, including defending against Goths, Huns, and the like.  But that wasn't enough.  By the sixth century, an elaborate story had grown up in which Constantine contacted leprosy but was healed by Pope Sylvester.  In gratitude the emperor gave Sylvester his own crown and other imperial insignia, led the pope's horse by the bridle (acting as groom), and declared that the bishop of Rome was above all other bishops.  Sylvester, not to be outdone in generosity and humility, gave the crown back -- but note the implication, the pope is the one who gets to decide if a man deserves to be crowned.

In the eighth century this story was improved further by the "discovery" of the Donation of Constantine, a supposed letter in which Constantine, on his way out the door to Constantinople, gave rule of the whole western half of the Empire to the pope.  Both popes and emperors believed this document to real, not a forgery, until the Renaissance, but the emperors always had some good reason to argue it didn't apply.  ("At least not now. Besides, the pope was a heretic.")

 

© C. Dale Brittain 2026

For more on medieval Christianity, see my new ebook, Positively Medieval: Life and Society in the Middle Ages.  Also available in paperback.