1243 CE
Seljuq autonomy is lost forever at the Battle of Köse Dag in 1243.
The defeat results in a period of turmoil in Anatolia and leads directly to the decline and disintegration of the Seljuq state.
The Empire of Trebizond becomes a vassal state of the Mongol empire.
Real power over Anatolia is exercised by the Mongols.
