耶律楚材字晋卿，号湛然居士，契丹人、辽太祖耶律阿保机九世孙。他自幼聪明好学，知识非常渊博，凡天文、地理、律历、术数及释老、医卜诸说，无不通晓。燕京被蒙古军攻陷，楚材被俘。他归附成吉思汗后，随后者南征北伐，深得信任。太宗三年(1231)被任命为必阇赤，主管汉地民事。
Yeh-lü Chu-Tsai Submitting Genghis Khan
Yeh-lü Chu-Tsai, alternative named Jinqing, styled Qinglian hermit, Khitan, the ninth –generation grandchildren of Liao Taizu Yeh-lü Abaoji. He was clever and eager to learn from his childhood, his knowledge was very rich, and he was proficient in astronomy, geography, legal calendar, Addressing Old (ancient Chinese religious books), Doctrine of Divination and doctor. Yanjing (presently Beijing) was invaded by Mongolian army, so Yeh-lü Chu-Tsai was captured. After submitting Genghis Khan, he fought all over the country with him and got trust. Three years of Taizong (1231), he was appointed as Biduchi(a government official ), which governed civil of the Han nationality.
Yeh-lü Chu-Tsai Submitting Genghis Khan
Yeh-lü Chu-Tsai, alternative named Jinqing, styled Qinglian hermit, Khitan, the ninth –generation grandchildren of Liao Taizu Yeh-lü Abaoji. He was clever and eager to learn from his childhood, his knowledge was very rich, and he was proficient in astronomy, geography, legal calendar, Addressing Old (ancient Chinese religious books), Doctrine of Divination and doctor. Yanjing (presently Beijing) was invaded by Mongolian army, so Yeh-lü Chu-Tsai was captured. After submitting Genghis Khan, he fought all over the country with him and got trust. Three years of Taizong (1231), he was appointed as Biduchi(a government official ), which governed civil of the Han nationality.