Aybak vs John III of Brabant

Aybak faced a rebellion from the Ayyubid prince An-Nasir Yusuf of Syria, who claimed the sultanate. Aybak defeated the Ayyubid forces at the Battle of Al-Kura in 1251. This victory consolidated Mamluk control over Egypt and prevented Ayyubid restoration.

Aybak became the first Mamluk Sultan of Egypt after marrying Shajar al-Durr and forcing her abdication. He was recognized by the Abbasid Caliph in Cairo. This marked the formal establishment of the Mamluk Sultanate, ending Ayyubid rule in Egypt.

Aybak was murdered in his bathhouse on the orders of his wife Shajar al-Durr. She feared he would replace her with another wife. His death triggered a succession crisis and led to the rise of his son Al-Mansur Ali, with Qutuz as regent.

John III, as Duke of Brabant, granted the Charter of Kortenberg, a landmark document that limited ducal power and established a council of nobles and towns to oversee governance. This charter is considered an early step toward constitutional rule in Brabant.

Upon John III's death, his daughter Joanna inherited Brabant, but her husband Wenceslaus I of Luxembourg faced challenges from the Count of Flanders. This conflict, known as the War of the Brabant Succession, began immediately after John's death.

John III of Brabant led the Brabantine army to victory against the forces of the Count of Flanders near Brussels. The battle secured Brabant's independence from Flemish expansion and solidified John's reputation as 'the Triumphant'.