24 October 1260 - 1 July 1277 AD: The Reign of Mamluk Sultan al-Zahir Rukn al-Din Baibars (Baybars) I al-Bunduqdari (1260-1277 AD, 658-665 AH, died in office)(الملك الظاهر ركن الدين بيبرس البندقداري) nicknamed Abu al-Futuh and Abu l-Futuhat (أبو الفتوح; "Father of Conquest", referring to his victories) — He was one of the commanders of the Muslim forces that defeated King Louis IX of France to end the Seventh Crusade (1248 to 1254). Louis IX was defeated by the Ayyubid Sultan Al-Muazzam Turanshah, supported by Faris ad-Din Aktai's Bahariyya Mamluks, Baibars al-Bunduqdari, Qutuz, Aybak, and Al-Mansur Qalawun. Louis was taken prisoner, and approximately 800,000 bezants were paid in ransom for his release. Baibars also led the vanguard of the army at the Battle of Ain Jalut in 1260, which marked the first substantial defeat of the Mongol army and is considered a turning point in history. The reign of Baibars marked the start of the 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 (in the Sudan), which was famous for being unconquerable by previous Muslim empire invasion attempts. This marks the start of the spread of Islam south of Egypt.