In France, following the Reformation, Calvinists known as Huguenots sprang up in large numbers. The Roman Catholic establishment persecuted them. Manipulated by French political leaders, the Huguenots rose to defend their rights. Their behavior and methods in turn outraged Catholics. War ravaged France. Although fewer in numbers than their foes, the Huguenots fought so fiercely they managed to extract concessions which allowed them to build churches and manage affairs in cities where they had majorities. But the bloodshed imprinted lasting animosity between Protestants and the Catholic majority.
Out of this smoldering hatred flared up one of the most regrettable events of church history. On August 22, 1572 an attempt was made in Paris to assassinate Huguenot leader and French patriot Coligny. Wounded, he returned home to recover. Accounts disagree as to what happened next and who was responsible. Late on this day, August 23, 1572, armed men, led by the Guises, broke into Coligny's apartment, overcame the fierce resistance of his guards and killed him. Coligny's death was the signal for a general butchery of the Huguenots. This atrocity is known to history as the St. Bartholomew's Day Massacre because it lasted well into that saint's day.
Catholics slaughtered Huguenots in cold blood into the morning of the 24th in Paris and for days in outlying regions. As many as 70,000 perished. The rest fled to fortified cities and fought back. Their movement became known as La Cause (The Cause) and pitted them against The Holy League (La Sainte Ligue). Brutal fighting raged across the French kingdom.
Charles IX publicly claimed he had ordered the massacre. Certainly the Paris constabulary were warned in advance to prepare for disturbances. Many historians have seen the plot as the work of Catherine de Medici, who felt her power threatened. Possibly Charles, by taking credit, was trying to reap a political benefit from the gruesome event. If so, he won no plaudits outside Catholic regions. Pope Gregory XIII struck a special medallion to commemorate the "holy" act but most other European reaction was horrified. Charles himself suffered psychological agonies from the affair.
The Massacre of St. Bartholomew was not the end of the matter. When the Protestant Henry of Navarre converted to Catholicism in order to become king, he granted his Huguenot compatriots a number of rights under the Edict of Nantes. These rights were gradually eroded, more Huguenot revolts occurred and, finally, 400,000 fled the country into voluntary exile under Louis XIV.
Bibliography:
Last updated April, 2007.