Jochi vs Joscelin II of Edessa

Jochi commanded a Mongol army during the invasion of the Khwarezmian Empire. He led campaigns in the northern regions, capturing cities such as Jand and Yangikent, and securing the Syr Darya basin for the Mongols.

Jochi's legitimacy as Genghis Khan's eldest son was questioned by his brothers, particularly Chagatai. This dispute led to Jochi being passed over for succession, with Ogedei chosen as Great Khan instead, fueling tensions.

After Genghis Khan's death, Jochi's sons inherited his territories in the western Mongol Empire, forming the Jochi Ulus, which later became the Golden Horde. Jochi himself died before Genghis, so his sons ruled in his stead.

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.