Linked from
The 12 pages that link to Battle of Köse Dağ, each with the reason it gives.
Hulagu KhanRelated: It weakened Seljuk power in a region later targeted by Hulagu’s campaigns.
Sultanate of RumBroader topic: The defeat made Seljuk rulers dependent on Mongol power.
KonyaRelated: The defeat weakened the state that had made Konya its capital.
Mongol invasions of the LevantRelated: The victory opened further routes west toward the Levant.