Joscelin II of Edessa vs William I of Hainaut

Joscelin II was absent from Edessa when Zengi besieged the city. The city fell after a short siege, marking the first major Crusader territory loss and triggering the Second Crusade.

Joscelin II participated in the Second Crusade's failed siege of Damascus. The campaign's failure further weakened the Crusader states and left Edessa's remnants vulnerable to Muslim reconquest.

Joscelin II was captured by Nur ad-Din's forces while traveling in disguise. He was imprisoned in Aleppo and blinded, ending his effective rule and leading to the final loss of the County of Edessa's remaining territories.

Joscelin II died in captivity in Aleppo after nine years of imprisonment. His death marked the end of the County of Edessa as a Crusader state, with its lands absorbed by Nur ad-Din's expanding realm.

William I inherited the counties of Hainaut, Holland, and Zeeland from his father John II of Avesnes. He ruled these territories for over three decades, maintaining stability and fostering economic growth.

William I of Hainaut married his daughter Margaret to Louis IV, Holy Roman Emperor. This marriage strengthened ties between Hainaut and the Wittelsbach dynasty, enhancing William's influence in imperial politics.

William I of Hainaut married his daughter Philippa to King Edward III of England. This alliance brought Hainaut into the English orbit and provided Edward with crucial military support for the early stages of the Hundred Years' War.