adding that the Arabs called "ašhal" a man whose iris ("bübäčik") was black, cornea white ("aq"), and whose limbal ring was red. This explanation was questioned by Paul Pelliot and Louis Hambis before. 14th century Arabic historian Shihab al-Umari disputed Rashid al-Din's translation and claimed Alan Gua falsified the origin of her clan to escape death sentence. Historians such as Denise Aigle claimed that Rashid al-Din mythicized the origin of Genghis Khan ancestors (the Borjigin clan) through his own interpretations of The Secret History of the Mongols. Italian historian Igor de Rachewiltz claimed that the Mongol origins of the early ancestors of Genghis Khan were animals born from the blue-grey wolf (Borte Chino) and the fallow doe (Qo'ai Maral) that was described in the early legends, that their ancestors were animals. History The Borjigin family ruled over the Mongol Empire from the 13th to 14th century. The rise of Genghis (Chingis) narrowed the scope of the Borjigid-Kiyad clans sharply. This separation was emphasized by the intermarriage of Genghis's descendants with the Barlas, Baarin, Manghud and other branches of the original Borjigid. In the western regions of the Empire, the Jurkin and perhaps other lineages near to Genghis's lineage used the clan name Kiyad but did not share in the privileges of the Genghisids. The Borjigit clan had once dominated large lands stretching from Java to Iran and from Indo-China to Novgorod. In 1335, with the disintegration of the Ilkhanate in Iran, the first of numerous non-Borjigid-Kiyad dynasties appeared. Established by marriage partners of Genghisids, these included the Suldus Chupanids, Jalayirids in the Middle East, the Barulas dynasties in Chagatai Khanate and India, the Manghud and Onggirat dynasties in the Golden Horde and Central Asia, and the Oirats in western Mongolia. In 1368, during the reign of Toghun Temür (Emperor Huizong of Yuan), the Yuan dynasty was overthrown by the Ming dynasty but members of the family continued to rule over northern China and the Mongolian Plateau into the 17th century, known as the Northern Yuan dynasty. Descendants of Genghis Khan's brothers, Hasar and Belgutei, surrendered to the Ming in the 1380s. By 1470 the Borjigin lines were severely weakened, and the Mongolian Plateau was almost in chaos. Post-Mongol Empire After the breakup of the Golden Horde, the Khiyat continued to rule the Crimea and Kazan until the late 18th century. They were annexed by the Russian Empire and the Chinese.