Qutuqa Beki (Mongolian: Худуга бэхи/Хутуга бэх; ᠬᠤᠳᠤᠭᠠ ᠪᠡᠬᠢ) — was a 13th century chief of the Oirats who played a major role in the formation of the Mongol Empire.
[1] According to a story, he along with the Naiman king Buyruq Khan, used a jada or "thunder stone" to unleash a powerful storm on Genghis' army.
[2] Subsequently, Genghis Khan defeated Jamukha and the Naimans, but the Oirats had not yet been conquered by the time the Mongol Empire was formed in 1206.
Nevertheless, when in 1207 Genghis Khan gave his eldest son Jochi the order to conquer the "forest peoples", Qutuqa was one of the first to obey, arriving with 10,000 Oirat soldiers.
[1] He then proceeded to the khan's court and submitted personally, having received such a powerful ally, Genghis married two women from his family to Qutuqa's children, thus starting one of the most fruitful alliances in Mongol history.