St. Bartholomew's Day Massacre

The St. Bartholomew's Day Massacre (August 24, 1572) was the coordinated mass killing of thousands of Huguenots (French Protestants) in Paris and beyond, linked to Catherine de' Medici. On the AP Euro exam it shows how religious conflict and noble-monarchy power struggles fused in the French Wars of Religion.

Verified for the 2027 AP European History examLast updated June 2026

What is the St. Bartholomew's Day Massacre?

The St. Bartholomew's Day Massacre began in Paris on August 24, 1572, when Catholic forces slaughtered Huguenot (French Protestant) leaders who had gathered for a royal wedding, the marriage of the Protestant Henry of Navarre to the king's Catholic sister. The killing spread through Paris and into the provinces, leaving thousands dead. Catherine de' Medici, the queen mother, is the figure most infamously associated with ordering or approving it.

For AP Euro, the massacre is not just a gruesome story. It is the clearest example of what the CED means when it says religious reform exacerbated conflicts between the monarchy and the nobility. The Huguenot leadership was largely noble, the crown was Catholic, and the massacre turned a political rivalry into open religious war. Instead of crushing Protestantism, it deepened the Catholic-Protestant divide and locked France into decades of violence that only the Edict of Nantes (1598) would calm.

Why the St. Bartholomew's Day Massacre matters in AP Euro

This term lives in Unit 2 (Age of Reformation), Topic 2.4 (Wars of Religion), and directly supports learning objective 2.4.A, which asks you to explain how religion influenced and was influenced by politics from 1450 to 1648. The massacre is your go-to evidence that religious conflict in this period was never purely about theology. It was tangled up with noble factions, royal succession, and state power. It also sets up the payoff of the topic. France eventually chooses pragmatic religious pluralism with the Edict of Nantes specifically because events like this massacre proved that forced Catholic unity meant endless civil war. If you can connect 1572 to 1598, you've basically explained the politique mindset the exam loves.

How the St. Bartholomew's Day Massacre connects across the course

Huguenots (Unit 2)

The Huguenots were the victims, but they were also a powerful noble faction, which is why the crown saw them as a political threat and not just a religious one. The massacre makes sense only when you remember that Calvinism in France spread heavily among the nobility.

Edict of Nantes (Unit 2)

The Edict of Nantes (1598) is the resolution to the problem the massacre made worse. After decades of violence, Henry IV granted Huguenots limited toleration to keep domestic peace, the CED's prime example of a state allowing religious pluralism for political stability.

Catholic League (Unit 2)

The massacre fed the cycle of radicalization that produced the Catholic League and the War of the Three Henries (1585-1589). Religious sides hardened into armed political parties fighting over who would control the French throne.

Defenestration of Prague (Unit 2)

Both events are violent sparks inside Europe's religious wars, but in different conflicts. St. Bartholomew's Day escalated France's civil wars in 1572, while the Defenestration of Prague (1618) kicked off the Thirty Years' War in the Holy Roman Empire.

Is the St. Bartholomew's Day Massacre on the AP Euro exam?

Expect multiple-choice questions that test whether you can place the massacre correctly in the French Wars of Religion. One common stem links it to Catherine de' Medici, the figure most infamously tied to the event. Another pairs the massacre with the War of the Three Henries (1585-1589) and asks what political process the religious divisions got tangled up with, which points you toward dynastic succession and the struggle between monarchy and nobility. Watch out for the trap question asking which event started the French Wars of Religion. The answer is not St. Bartholomew's Day, which came a decade into the fighting. No released FRQ has used this term verbatim, but it is strong specific evidence for any LEQ or DBQ on how religious conflict shaped state power between 1450 and 1648, especially if you contrast 1572's violence with 1598's pragmatic toleration.

The St. Bartholomew's Day Massacre vs Defenestration of Prague

Both are famous outbreaks of religious violence, so they blur together fast. The St. Bartholomew's Day Massacre (1572) happened in Paris during the French Wars of Religion and targeted Huguenots. The Defenestration of Prague (1618) happened in Bohemia and triggered the Thirty Years' War. Different country, different war, different century mark. If the question mentions Catherine de' Medici or Huguenots, it's St. Bartholomew's Day. If it mentions Bohemia or the Thirty Years' War, it's Prague.

Key things to remember about the St. Bartholomew's Day Massacre

  • The St. Bartholomew's Day Massacre was the mass killing of thousands of Huguenots that began in Paris on August 24, 1572, during the French Wars of Religion.

  • Catherine de' Medici is the figure most infamously associated with the massacre, which started during the wedding of Protestant Henry of Navarre.

  • The massacre did not start the French Wars of Religion; the wars had already been raging for about a decade, and the massacre escalated them.

  • It shows the core CED idea that religious reform exacerbated conflicts between the monarchy and the nobility, since Huguenot leaders were largely nobles.

  • The violence it fueled helps explain why France later chose religious pluralism with the Edict of Nantes (1598) to restore domestic peace.

  • On the exam, use it as evidence that religion and politics were inseparable in the period from 1450 to 1648.

Frequently asked questions about the St. Bartholomew's Day Massacre

What was the St. Bartholomew's Day Massacre in AP Euro?

It was the coordinated mass killing of thousands of Huguenots (French Protestants) starting in Paris on August 24, 1572, during the French Wars of Religion. AP Euro covers it in Topic 2.4 as evidence that religious conflict was tied to political power struggles.

Did the St. Bartholomew's Day Massacre start the French Wars of Religion?

No. The wars had been going on since the early 1560s, and the massacre in 1572 came roughly a decade in. It escalated and deepened the conflict rather than starting it, which is a classic multiple-choice trap.

Who was responsible for the St. Bartholomew's Day Massacre?

Catherine de' Medici, the Catholic queen mother of France, is the figure most infamously associated with it. The killings targeted Huguenot nobles gathered in Paris for the wedding of Henry of Navarre.

How is the St. Bartholomew's Day Massacre different from the Defenestration of Prague?

The massacre (1572) was anti-Huguenot violence in Paris during the French Wars of Religion, while the Defenestration of Prague (1618) was a Bohemian Protestant revolt that sparked the Thirty Years' War. They belong to different wars in different countries.

How does the St. Bartholomew's Day Massacre connect to the Edict of Nantes?

The massacre proved that trying to wipe out Protestantism only fueled civil war. In 1598, Henry IV issued the Edict of Nantes granting Huguenots limited toleration, the CED's main example of a state allowing religious pluralism to keep domestic peace.