On 10 June 1584, the duc d'Anjou, François d'Alençon died. Since King Henry III was childless and likely to remain so, the legitimate successor to the throne of France was the king's distant cousin and chief of the Protestant party, Henri, king of Navarre. In the following spring, the Catholic League took control of many cities in northern France. In an attempt to gain control of the League, headed by members of the house of Guise, Henri III declared himself its chief, an act that forced him to break with Henri of Navarre.
Terms
The treaty cancelled all previous edicts, dismissed all Huguenots from official office and forced the King to capitulate to the demands of the Catholic League. Moreover, the duc de Guise was given Châlons as a security. As a result, the entire north-eastern half of France was directly controlled by the House of Guise. Moreover, the Guises were promised significant subsidies. Henri bluntly told Charles, Cardinal de Bourbon, that the overall accord would bring chaos and ruin to France. Nevertheless, the king signed the treaty in his attempts to outflank the Guise and become leader of the Catholic League himself. On 18 July he went in person to the Parlement of Paris to hold a lit de justice and force the Parlement to register the terms of the treaty, giving them the effect of law, as well as royal prerogative. On 19 July the Catholic League promulgated their version of the edict, reinforcing the effects of the Treaty of Nemours. Based on the terms of the accord, all previous edicts granting religious and political concessions to the Huguenots were revoked. In short, the accord forbade the practice of all religions except Roman Catholicism in France. "Heretics" were not permitted to attain public office and ministers from other religions were banned. All subjects had to convert to Catholicism or risk being expelled from France.
Aftermath
sealed the Treaty of Nemours by excommunicating the King of Navarre and his cousin, the Prince of Condé. He based his excommunication on the grounds that the throne of Navarre was vested in Saint Peter, his successors, and the eternal power of God. As a result, the Papal Bull stripped the King of Navarre of his titles, and denied him and his cousin the right to succeed the French throne. The Papal Bull invalidated all allegiances sworn to the King of Navarre by his vassals. The Treaty of Nemours, and the events that ensued, were responsible for the advent of the War of the Three Henrys, the final phase of the French Wars of Religion.
