@article{oai:toyo-bunko.repo.nii.ac.jp:00005537,
 author = {岡田, 英弘 and OKADA, Hidehiro},
 issue = {1～4},
 journal = {東洋学報, The Toyo Gakuho},
 month = {Mar},
 note = {Paragraph 62 of the Secret History of the Mongols tells, in the words allegedly spoken by Dei Sechen, a chief of the Unggirad tribe, on the occasion of the betrothal between his daughter Börte and the young Chingis Khan, how his people were in the habit of securing a high position for themselves at the imperial court by marrying their daughters to the Khans. The episode itself is most probably a product of literary imagination as it finds no parallel in other, more reliable historical sources of that time, and its reference to the peaceful tradition of the Unggirad tribe proves that it was written at a time much later than its hero, Chingis Khan. The tribe, also known as the Qunggirad, was by no means a peaceful one, but notorious for their ravages of the northern frontiers of the Chin Empire in the twelfth century. Their power as imperial relatives by marriages had its origin no earlier than at the time when Chinkim, a son of Khubilai Khan, or Emperor Shih-tsu, by his Qunggirad empress Chabui, was appointed Crown Prince in 1273, or when Temür Öljeyitü Khan, or Emperor Ch’eng-tsung, a son of Chinkim by his Qunggirad princess, sat on the throne in 1294. The Qunggirad power reached its peak after Hayishan, or Emperor Wu-tsung, took over the throne in the coup-d’etat of 1307. It was overthrown in the civil war that followed the death of Yesün Temür, or Emperor T’al-ting, in 1328, and no other emperor born of a Qunggirad mother reigned thereafter.As for The Secret History of the Mongols, its Paragraphs 247-282 are clearly titled a Sequel, the colophon of which states that the book was completed, after a Great Quriltai had dissembled, at the Ordos camped at Köde’e Aral on the Kerülen in the seventh month of a mouse year. The Ordos here refers to the Four Great Ordos of Chingis Khan, the cult of which was the responsibility of Emperor T’al-ting and his father, Chin Wang Kamala. The mouse year was 1324, one year after the Quriltai that elected Yesün Temür emperor on the Kerülen. This being the date of the completion of the Sequel, that of The Secret History itself must be placed between 1324 and the earlier enfeoffment of Kamala on the Kerulen in 1292. After all, The Secret History of the Mongols was not a historical record, but a sacrificial literature devoted to the cult of Chingis Khan at his shrine.},
 pages = {157--177},
 title = {元朝秘史の成立},
 volume = {66},
 year = {1985},
 yomi = {オカダ, ヒデヒロ}
}