[{"data":1,"prerenderedAt":25},["ShallowReactive",2],{"zoom:p5ch16z15:en":3},{"period":4,"chapter":15,"zoom":18},{"id":5,"title":6,"titleEn":6,"titleEs":7,"coverArtworkId":8,"range":9,"rangeEn":9,"rangeEs":9,"cover":10},"p5","High Middle Ages","Plena Edad Media","hannibal-alpes","987 → 1453",{"fileName":11,"filePageUrl":12,"imageUrl":13,"sourceLabel":14},"Facade-notre-dame-paris-ciel-bleu.JPG","https://commons.wikimedia.org/wiki/File:Facade-notre-dame-paris-ciel-bleu.JPG","/assets/p5-moyen-age-classique-cover.png","Wikimedia Commons",{"id":16,"title":17},"p5ch16","John II the Good: Captivity, Internal Crisis, and the Treaty of Brétigny (1350–1364)",{"id":19,"title":20,"chapterId":16,"html":21,"hasEn":22,"isFallback":23,"seoDescription":24},"p5ch16z15","1353–1355: The Murder of La Cerda and the Treaties of Mantes/Valognes","\u003Cp>Between \u003Cstrong>1353\u003C/strong> and \u003Cstrong>1355\u003C/strong>, the Navarrese crisis tips into open violence. The royal favorite becomes the target, then diplomacy forces humiliating concessions on the king of France. This sequence shows the weakness of a state at war: the monarchy must avoid internal dissolution as much as external enemies.\u003C/p>\n\u003Chr>\n\u003Ch2>🤝 1353: Brittany, Negotiations, and Maneuver\u003C/h2>\n\u003Cp>The Breton file weighs on the balance: under diplomatic pressure, negotiations involve English, French, and Bretons. \u003Cstrong>Charles of La Cerda\u003C/strong> participates in discussions, while Charles II of Navarre is kept at the margins, which threatens his strategy: a Franco-English peace would reduce his alliance options.\u003C/p>\n\u003Chr>\n\u003Ch2>🗡️ January 8, 1354: Murder of Charles of La Cerda\u003C/h2>\n\u003Cp>On \u003Cstrong>January 8, 1354\u003C/strong>, Charles of La Cerda is murdered at \u003Cstrong>L’Aigle\u003C/strong> by men linked to the king of Navarre. Charles II assumes political responsibility for the act and justifies it as a matter of honor. For John II, it is a shock: his favorite is struck down, and royal authority appears impotent to protect those close to him.\u003C/p>\n\u003Chr>\n\u003Ch2>✍️ February 22, 1354: Treaty of Mantes\u003C/h2>\n\u003Cp>The Normandy crisis and the threat of conflagration force John II to compromise. The \u003Cstrong>Treaty of Mantes\u003C/strong> (February 22, 1354) grants Charles of Navarre important lands and prerogatives in Normandy, to the point of giving him levers comparable to those of a duke, without the title.\u003C/p>\n\u003Cp>The Navarrese obtains notably places and rights that reinforce his autonomy, up to maritime strongholds like \u003Cstrong>Cherbourg\u003C/strong>. For the king of France, it is a strategic concession: it avoids immediate coalition, but it weakens unity of command in Normandy.\u003C/p>\n\u003Cp>A lit of justice confirms the arrangement: the political sanction is minimal given the assassination’s gravity.\u003C/p>\n\u003Chr>\n\u003Ch2>⚔️ 1354–1355: Plots, Arrests, New Concessions\u003C/h2>\n\u003Cp>Trust is broken. Tensions continue: appeals to external support, neutralization attempts, displacements, arrest of \u003Cstrong>Philip of Navarre\u003C/strong> (1355), and rearmament of Norman places. Finally, the \u003Cstrong>Treaty of Valognes\u003C/strong> (September 10, 1355) reaffirms the compromise logic: the king validates the essence of Mantes, failing to impose a forceful solution.\u003C/p>\n\u003Chr>\n\u003Ch2>🧠 To Remember\u003C/h2>\n\u003Cul>\n\u003Cli>1354: La Cerda’s assassination tips the crisis into political violence.\u003C/li>\n\u003Cli>Mantes and Valognes show a monarchy constrained to negotiate under internal pressure.\u003C/li>\n\u003C/ul>\n",true,false,"Between 1353 and 1355 , the Navarrese crisis tips into open violence. The royal favorite becomes the target, then diplomacy forces humiliating concessions on",1778543136936]