1347-1351 · Avignon, France (papal seat during the crisis)
The Black Death and the Flagellant Movement
When plague killed a third of Europe, the Church had no answers. Some people decided God wanted them to beat themselves bloody in the streets. The Church eventually said no.
The Black Death arrived in Europe in 1347 and killed roughly 25 million people — about one-third of the continent's population — within five years. Entire villages were wiped out. Priests, who were expected to visit the sick and administer last rites, died at even higher rates than the general population. In many places, there simply was no one left to bury the dead, let alone explain why God had permitted it. The Church's theological framework strained to breaking. If God was in control, this was either punishment for sin or a mystery beyond human understanding. Many chose punishment. Groups of flagellants formed across Germany, the Low Countries, and beyond. They marched from town to town, stripped to the waist, whipping themselves with leather straps embedded with iron spikes until blood ran down their backs. They believed their self-inflicted suffering could atone for the sins that had brought the plague. Crowds watched and wept. Some flagellant groups also turned their rage outward, attacking Jewish communities and accusing them of poisoning wells. Thousands of Jews were massacred across Central Europe, often with the passive complicity of local authorities. Pope Clement VI condemned the flagellants in 1349 and explicitly defended the Jews, issuing a bull that declared them innocent and threatening excommunication for anyone who harmed them. It was one of the papacy's better moments during the crisis. But the damage was enormous. The Church lost credibility, manpower, and moral authority. The plague did not respect prayer, penance, or sacraments. A generation grew up knowing that the Church could not protect them from the worst things in the world.
Why it matters
Devastated the Church's institutional capacity and moral authority, fueled apocalyptic movements, and led to anti-Jewish violence, while also prompting one of the papacy's clearest defenses of Jewish communities.
What Happened
Bubonic plague arrived in Sicily in 1347 and swept across Europe within four years, killing roughly one in three people. The Church lost huge numbers of clergy who died ministering to the sick. Flagellant movements arose spontaneously, with groups of penitents publicly whipping themselves in hopes of appeasing God. Some flagellant bands attacked Jewish communities, blaming them for the plague. Pope Clement VI condemned the flagellants in 1349 and issued a bull defending the Jews, declaring them innocent of the plague and forbidding violence against them.
Why It Still Matters
The Black Death was the greatest crisis the medieval Church ever faced. The massive loss of clergy led to hasty ordinations and a decline in clerical quality that would contribute to the corruption the Reformation later attacked. The flagellant movement showed how quickly popular piety can turn toxic without proper guidance. Clement VI's defense of the Jews, though often ignored in practice, stands as an important early example of papal opposition to anti-Semitic violence. The plague also forced ordinary Catholics to develop a more personal spirituality, since institutional support was often simply gone.