Köten is a Cuman khan and member of the Terter(oba) clan.
This Köten is the same Prince Kotjan Sutoevic of the Russian annals, who forged the Russian-Cuman alliance against the Tatars.
Cumans and Kipchaks (who with the Cumans created the Cuman - Kipchak confederation) under Köten and a Russian army of 80,000 men under his son-in-law Mstislav -ithe Bold -- of Galich fight a battle against a Mongol assault led by Jebe and Sübötäi.
The action takes place near the Kalka or Kalmius, a small coastal river flowing into the Sea of Azov near Mariupol.
The prince of Galich and the Kumans-Kipchaks are routed and have to flee (31 May 1223).
Later the prince (Mstislav) is killed by being tied down on the ground and having a wooden platform put on top of him, where the Mongols have their breakfast.
Köten is deposed from power in this year, but he remains leader of the clan.
