Kotyan, Cuman Chieftain

Type Figure Region East European steppe Time c. 1180–1241 Also known as Kutan、Kuchin

Early 13th-century Cuman (Kipchak) tribal leader active in the East European steppe and along the Hungarian frontier, dying around 1223.

Timeline

c. 1200–1222Cumania · CumaniaLed the Cuman tribal confederation, maintaining complex relations with the Rus' principalities and Hungary, preserving the political balance of the steppe before the eastward advance of Mongol power.
1223Kalka River · UkraineWhen the Mongol army advanced west, he formed a joint force with the Rus' principalities to meet them at the Kalka River. The coalition initially gained the upper hand but was ultimately routed through poor coordination and Mongol feigned-retreat tactics, dealing a heavy blow to Cuman power.
1239–1241Hungary · HungaryAfter the defeat at the Kalka River he led his remnants west, requesting refuge from King Andrew II of Hungary; some Cumans were permitted to settle in eastern Hungary, foreshadowing the political shifts when the Mongols later invaded Central Europe.

Battle of the Kalka River — Encyclopaedia Britannica https://www.britannica.com/event/Battle-of-the-Kalka-River
The Mongol Empire and Its Legacy — Reuven Amitai-Preiss, David O. Morgan (eds.) (1999)