Kaidu (11th century) should not be confused with Kaidu.
| Khaidu Khan | |
| Khan of The Borjigid | |
| Succession: | Khan of Mongol Borjigid |
| Reign: | ? – 1100 |
| Predecessor: | Hachi Hulug |
| Successor: | Bashinkhor Khan |
| Birth Place: | Northern Mongolia |
| Death Date: | (aged 74–75) |
| Death Place: | Northern Mongolia |
| Issue: | Bashinkhor Dogshin Charaqai Lingqum |
| Era Name: | (Liao Era |
| Era Dates: | 11th–Centuries) |
| Father: | Hachi Hulug |
| Mother: | Monolun |
| Religion: | Tengrism |
| Royal House: | Borjigid Dynasty |
Kaidu (b. 1025 – d. 1100; Middle Mongol: in Mongolian pronounced as /ˈkʰaɪd̥ʊ/; Mongolian: Хайду|Haidu, in Mongolian pronounced as /ˈχæˑtʊ̽/) was a Mongol ruler of the Borjigin Clan who was the great-great-grandson of Bodonchar Munkhag (c. 850 – 900). Kaidu's great-grandson was Khabul Khan (died 1149), and Khabul Khan's great-grandson was Genghis Khan (1162–1227), and Kaidu's other great-grandson Khadjuli (died 12th-Century), and Khadjuli Barlas great-great-great-great-great-great-grandson Timur Barlas (1330s–1405), his son Bashinkhor Dogshin succeeded him.[1]
Kaidu is mentioned in the Secret History of the Mongols, the History of Yuan shi, and the Jami al-Tawarikh. He was born circa. 1025 as the youngest of the eight sons of Queen Monolun,[2] the widowed wife of Khachi Khulug, son of Menen Dutum. At this time the Liao Dynasty (907-1125) of the Mongolic Khitan had control over Mongolia, although the northernmost regions were difficult to keep under control. In the 1050s, the Khitans of the Liao Dynasty attacked the Jalair, a Darligin Mongol tribe living at the Kerulen River in the far-eastern region of Mongolia. The Jalair fled to the Borjigin Mongols led by Queen Monolun (Nomulun in the Secret History), the mother of Khaidu. They killed Monolun and all her sons except Kaidu who was hidden by his uncle Nachin. Khaidu later conquered the Jalair and made them his subjects.
Rashid Al-Din says in the Jami Al-Tawarikh: