Seventh Crusade in the context of "Louis IX"

Charles I (Italian: Carlo; early 1226/1227 – 7 January 1285), commonly called Charles of Anjou or Charles d'Anjou, was King of Sicily from 1266 to 1285. He was a member of the Capetian dynasty and the founder of the House of Anjou-Sicily. Between 1246 and 1285, he was Count of Provence and Forcalquier in the Holy Roman Empire and Count of Anjou and Maine in France. In 1272 he was proclaimed King of Albania, in 1277 he purchased a claim to the Kingdom of Jerusalem, and in 1278 he became Prince of Achaea after the previous ruler, William of Villehardouin, died without heirs.

The youngest son of Louis VIII of France and Blanche of Castile, Charles was destined for a church career until the early 1240s. He acquired Provence and Forcalquier through his marriage to Beatrice. His attempts to restore central authority brought him into conflict with his mother-in-law, Beatrice of Savoy, and the nobility. He relinquished control of Forcalquier to his mother-in-law in 1248, although she returned it to him in 1256. Charles received Anjou and Maine from his brother, Louis IX of France, in appanage. He accompanied Louis during the Seventh Crusade to Egypt. Shortly after he returned to Provence in 1250, Charles forced three wealthy autonomous cities—Marseille, Arles and Avignon—to acknowledge his suzerainty.

Louis IX (25 April 1214 – 25 August 1270), also known as Saint Louis, was King of France from 1226 until his death in 1270. He is widely recognized as the most distinguished of the Direct Capetians. Following the death of his father, Louis VIII, he was crowned in Reims at the age of 12. His mother, Blanche of Castile, effectively ruled the kingdom as regent until he came of age, and continued to serve as his trusted adviser until her death. During his formative years, Blanche successfully confronted rebellious vassals and championed the Capetian cause in the Albigensian Crusade, which had been ongoing for the past two decades.

As an adult, Louis IX grappled with persistent conflicts involving some of the most influential nobles in his kingdom, including Hugh X of Lusignan and Peter I of Brittany. Concurrently, England's Henry III sought to reclaim the Angevin continental holdings, only to be decisively defeated at the Battle of Taillebourg. Louis expanded his territory by annexing several provinces, including parts of Aquitaine, Maine, and Provence. Keeping a promise he made while praying for recovery from a grave illness, Louis led the ill-fated Seventh and Eighth Crusades against the Muslim dynasties that controlled North Africa, Egypt, and the Holy Land. He was captured and ransomed during the Seventh Crusade, and later succumbed to dysentery during the Eighth Crusade. His son, Philip III, succeeded him.

Sayf ad-Din Qutuz (Arabic: سيف الدين قطز; died 24 October 1260), also romanized as Kutuz or Kotuz and fully al-Malik al-Muẓaffar Sayf ad-Dīn Quṭuz (الملك المظفر سيف الدين قطز lit. 'The Victorious King, Sword of the Faith Qutuz'), was the Mamluk Sultan of Egypt. He reigned as Sultan for less than a year, from 1259 until his assassination in 1260, but served as the de facto ruler for two decades.

Sold into slavery in Egypt, he rose to become vice-sultan for more than 20 years, becoming the power behind the throne. He was prominent in defeating the Seventh Crusade, which invaded Egypt in 1249–1250. When Egypt was threatened by the Mongols in 1259, he took control of the military and deposed the reigning sultan, 15-year-old Sultan Al-Mansur Ali. The Mongols conquered the centers of Islamic power in Syria and Baghdad, and the center of the Islamic Empire moved to Egypt, which became their next target. Qutuz led an Egyptian Mamluk army north to confront the Mongols, who had made a pact with Egypt's long-time enemy, the Crusaders.

Al-Malik al-Zahir Rukn al-Din Baybars al-Bunduqdari (Arabic: الْمَلِك الظَّاهِر رُكْن الدِّين بَيْبَرْس الْبُنْدُقْدَارِيّ; 1223/1228 – 30 June 1277), commonly known as Baibars or Baybars (بَيْبَرْس) and nicknamed Abu al-Futuh (أَبُو الْفُتُوح, lit. 'Father of Conquests'), was the fourth Mamluk sultan of Egypt and Syria, of Turkic Kipchak origin, in the Bahri dynasty, succeeding Qutuz. He was one of the commanders of the Muslim forces that inflicted a defeat on the Seventh Crusade of King Louis IX of France. He also led the vanguard of the Mamluk army at the Battle of Ain Jalut in 1260, which marked the first substantial defeat of the Mongol army that is considered a turning point in history.

The reign of Baybars marked the start of an age of Mamluk dominance in the Eastern Mediterranean and solidified the durability of their military system. He managed to pave the way for the end of the Crusader presence in the Levant and reinforced the union of Egypt and Syria as the region's pre-eminent Muslim state, able to fend off threats from both Crusaders and Mongols, and even managed to subdue the kingdom of Makuria, which was famous for being unconquerable by previous Muslim empire invasion attempts. As sultan, Baybars also engaged in a combination of diplomacy and military action, allowing the Mamluks of Egypt to greatly expand their empire.

William of Villehardouin (French: Guillaume de Villehardouin; Kalamata, c. 1211 – 1 May 1278) was the fourth prince of Achaea in Frankish Greece, from 1246 to 1278. The younger son of Prince Geoffrey I, he held the Barony of Kalamata in fief during the reign of his elder brother Geoffrey II. William ruled Achaea as regent for his brother during Geoffrey's military campaigns against the Greeks of Nicaea, who were the principal enemies of his overlord, the Latin Emperor of Constantinople Baldwin II. William succeeded his childless brother in the summer of 1246. Conflicts between Nicaea and Epirus enabled him to complete the conquest of the Morea in about three years. He captured Monemvasia and built three new fortresses, forcing two previously autonomous tribes, the Tzakones and Melingoi, into submission. He participated in the unsuccessful Egyptian crusade of Louis IX of France, who rewarded him with the right to issue currency in the style of French royal coins.

In the early 1250s, William was the most powerful ruler of Frankish Greece. Most neighboring Frankish rulers acknowledged his suzerainty. In 1255, he laid claim to the northern terziere, or third, of the Lordship of Negroponte on the island of Euboea. Although the two other rulers of Negroponte were his vassals, they rejected his claim. They gained the support of Venice, Guy I de la Roche, Lord of Athens, and other Frankish rulers. The conflict developed into a war of succession that caused much destruction in Euboea and mainland Greece. After William's victory in Attica in May 1258, Guy and his allies surrendered. Guy was tried for his disloyalty but was allowed to keep his Achaean fiefs.

The Rothelin Continuation is an anonymous Old French prose history of the Crusades and the Crusader states between 1229 and 1261. It is one of the most important sources for the period it covers, which includes the Barons' Crusade (1239–1241), the Seventh Crusade (1248–1254) and the first Mongol raid into Palestine (1260).