Ki Ch'ŏl (Korean: 기철; Hanja: 奇轍; died June 16, 1356[a]), also known by his Mongolian name Bayan Buka,[1] was a political figure and nobleman in the late Goryeo dynasty.
After his younger sister, Empress Gi who was the wife of Toghon Temür[2] giving birth to a prince, Ki Ch'ŏl was then honoured as Internal Prince Deokseong.
[3] Ki received a government post from the Yuan dynasty and appointed as the Grand Minister of Education or da situ (大司徒) in 1340.
On June 16, 1356, Ki was invited to a palace banquet by King Gongmin himself, but as soon as he entered it, the king accused him and Kwŏn Kyŏm, both members of the pro-Yuan faction, of plotting treason and conspiracy, and they were arrested and executed them on the spot.
[5][6] Ki Yu-gŏl and Öljei Buka were also killed by the king's orders.