Catholic League (French)
The Catholic League of France, sometimes referred to by contemporary (and modern) Roman Catholics as the Holy League, a major player in the French Wars of Religion, was formed by Duke Henry of Guise in 1576. The League intended the eradication of Protestants—also known as Calvinists or Huguenots—out of Catholic France during the Protestant Reformation; as well as the replacement of King Henry III.
The Catholic League's political origins 
As Protestantism expanded through parts of Europe, leaders of Catholic nations, in particular Philip II of Spain, and the Pope, felt threatened. In an effort to counter the growing power of Lutherans, Calvinists, and members of the Reformed Church of France, they formed a league to stop the spread of these Protestant factions. The Protestant Calvinists at that time dominated much of the French nobility, leading to active persecution of Catholics in some regions.
The Catholic League of France aimed to preempt any seizure of power by the Huguenots and to protect French Catholics' right to worship. The Catholic League's cause was fueled by the doctrine Extra Ecclesiam Nulla Salus. Catholic Leaguers saw their fight against Calvinism (the primary branch of Protestantism in France) as a Crusade against heresy. The League's pamphleteers also blamed any natural disaster that occurred in France at the time as God's way of punishing France for tolerating the existence of the Calvinist heresy.
What is the final judgement on the Catholic League? It would be a mistake to treat it, as so many historians have, as nothing more than a body motivated purely by partisan politics or social tensions. While political and social pressures were doubtless present, and even significant in the case of the Sixteen in Paris, to focus on these factors exclusively overlooks a very different face of the League. For all its political and internecine wrangling, the League was still very much a Holy Union. Its religious role was significant, as the League was the conduit between the Tridentine spirituality of the Catholic Reformation and the seventeenth century devots. Often overlooked is the emphasis the League placed on the internal and spiritual renewal of the earthly city. Moving beyond the communal religion of the later Middle Ages, the League focused on internalizing faith as a cleansing and purifying agent. New religious orders and confraternities were founded in League towns, and the gulf separating laity and clergy was often bridged as clerics joined aldermen in the Hotel de Ville where both became the epitome of goodly magistrates. To overlook the religious side of the League is to overlook the one bond that did keep the Holy Union holy as well as united.
After a series of bloody clashes, the French Wars of Religion (1562–1598), between Catholics and Protestants, the Catholic League formed in an attempt to break the power of the Calvinist gentry once and for all. The Catholic League saw the French throne under Henry III as too conciliatory towards the Huguenots. The League, similar to hardline Calvinists, disapproved of Henry III's attempts to mediate any coexistence between the Huguenots and Catholics. The Catholic League also saw moderate French Catholics, known as Politiques, as a serious threat. The Politiques were tired of the many tit for tat killings and were willing to negotiate peaceful coexistence rather than escalating the war.
History of the League 
The League immediately began to exert pressure on Henry III of France. Faced with this mounting opposition (spurred in part because the heir to the French throne, Henry of Navarre, was a Huguenot) he canceled the Peace of La Rochelle, re-criminalizing Protestantism and beginning a new chapter in the French Wars of Religion. However, Henry also saw the danger posed by the Duke of Guise, who was gaining more and more power. In the Day of the Barricades, King Henry III was forced to flee Paris, which resulted in Henry, Duke of Guise becoming the de facto ruler of France. Afraid of being deposed and assassinated, the King decided to strike first. On December 23, 1588, Henry III's guardsmen assassinated the Duke and his brother, Louis II and the Duke's son was imprisoned in the Bastille.
However, this move did little to consolidate the King's power and enraged both the surviving Guises and their followers. As a result, the King fled Paris and joined forces with Henry of Navarre, the throne's Calvinist heir apparent. Both the King and Henry of Navarre began building an army with which to besiege Paris. On August 1, 1589, as the two Henrys besieged the city and prepared for their final assault, Jacques Clément a Dominican Lay brother with ties to the League, successfully infiltrated the King's entourage, dressed as a priest, and assassinated him. This was retaliation for the killing of the Duke of Guise and his brother. As he lay dying, the King begged Henry of Navarre to convert to Catholicism, calling it the only way to prevent further bloodshed. However, the King's death threw the army into disarray and Henry of Navarre was forced to lift the siege.
Although Henry of Navarre was now the legitimate King of France, the League's armies were so strong that he was unable to capture Paris and was forced to retreat south. Using arms and military advisors provided by Elizabeth I of England, he achieved several military victories. However, he was unable to overcome the superior forces of the League, which commanded the loyalty of most Frenchmen and had the support of Philip II of Spain. The League then attempted to declare the Cardinal of Bourbon, Henry's uncle, as king Charles X of France on November 21, 1589, but his status as a prisoner of Henry of Navarre and his death in May 1590 removed all legitimacy from this gesture. Furthermore, the Cardinal refused to usurp the throne and supported his nephew, although to little avail.
Unable to provide a viable candidate for the French throne (the League's support was split among several candidates, including Isabella, a Spanish princess, which made them appear to no longer have French interests at heart), the League's position weakened, but remained strong enough to keep Henry from besieging Paris. Finally, in a bid to peacefully end the war, Henry of Navarre was received into the Roman Catholic Church on July 25, 1593 and was recognized as King Henry IV on February 27, 1594. He later said, "Paris is well worth a Mass."
Under the rule of King Henry IV, the Edict of Nantes was passed, granting religious toleration and limited autonomy to the Huguenots and ensuring a lasting peace for France. Moreover, the Catholic League now lacked the threat of a Calvinist king and gradually disintegrated.
- Holt, Mack P. : The French Wars of Religion, 1562-1629, page 122. New York, 1995
- Carroll, Warren H. : The Cleaving of Christendom : A History of Christendom vol. 4, page 432. Christendom Press, 2004
- "French Wars of Religion".
- Holt, Mack P. The French Wars of Religion, 1562-1629, page 149-150. New York, 1995
- Baumgartner, Frederic J. Radical Reactionaries: The Political Thought of the French Catholic League (Geneva:Droz) 1976
- Jensen, De Lamar Diplomacy and Dogmatism: Bernardino de Mendoza and the French Catholic League Mendoza's role in Philip II's intervening foreign policy.
- Konnert, Mark "Local politics in the French Wars of Religion"
- Leonardo, Dalia M. "Cut off this rotten member": The Rhetoric of Heresy, Sin, and Disease in the Ideology of the French Catholic League" The Catholic Historical Review 88.2, (April 2002:247-262).
- Yardeni, Myriam "La Conscience nationale en France pendant les guerres de religion"