Yūnas Khān (d. 892 AH.-1487 AD.) and Aīsān-būghā Khān (d. 866 AH.-1462 AD.) were sons of Wais Khān (d. 832 AH.-1428 AD.).[134] Yūnas Khān's mother was either a daughter or a grand-daughter of Shaikh Nūru'd-dīn Beg, a Turkistānī Qīpchāq favoured by Tīmūr Beg. When Wais Khān died, the Mughūl horde split in two, one portion being for Yūnas Khān, the greater for Aīsān-būghā Khān. For help in getting the upper hand in the horde, Aīrzīn (var. Aīrāzān) one of the Bārīn _tūmān_-begs and Beg Mīrik _Turkmān_, one of the Chīrās _tūmān_-begs, took Yūnas Khān (aet. 13) and with him [Sidenote: Fol. 10.] three or four thousand Mughūl heads of houses (_awīlūq_), to Aūlūgh Beg Mīrzā (_Shāhrukhī_) with the fittingness that Aūlūgh Beg M. had taken Yūnas Khān's elder sister for his son, `Abdu'l-`azīz Mīrzā. Aūlūgh Beg Mīrzā did not do well by them; some he imprisoned, some scattered over the country[135] one by one. The Dispersion of Aīrzīn became a date in the Mughūl horde. Yūnas Khān himself was made to go towards `Irāq; one year he spent in Tabrīz where Jahān Shāh _Barānī_ of the Black Sheep Turkmāns was ruling. From Tabrīz he went to Shīrāz where was Shāhrukh Mīrzā's second son, Ibrāhīm Sulṯān Mīrzā.[136] He having died five or six months later (Shawwal 4, 838 AH.-May 3rd, 1435 AD.), his son, `Abdu'l-lāh Mīrzā sat in his place. Of this `Abdu'l-lāh Mīrzā Yūnas Khān became a retainer and to him used to pay his respects. The Khān was in those parts for 17 or 18 years. In the disturbances between Aūlūgh Beg Mīrzā and his sons, Aīsān-būghā Khān found a chance to invade Farghāna; he plundered as far as Kand-i-badām, came on and, having plundered Andijān, led all its people into captivity.[137] Sl. Abū-sa`īd Mīrzā, after seizing the throne of Samarkand, led an army out to beyond Yāngī (Tarāz) to Aspara in Mughūlistān, [Sidenote: Fol. 10b.] there gave Aīsān-būghā a good beating and then, to spare himself further trouble from him and with the fittingness that he had just taken to wife[138] Yūnas Khān's elder sister, the former wife of `Abdu'l-`azīz Mīrzā (_Shāhrukhī_), he invited Yūnas Khān from Khurāsān and `Irāq, made a feast, became friends and proclaimed him Khān of the Mughūls. Just when he was speeding him forth, the Sāghārīchī _tūmān_-begs had all come into Mughūlistān, in anger with Aīsān-būghā Khān.[139] Yūnas Khān went amongst them and took to wife Aīsān-daulat Begīm, the daughter of their chief, `Alī-shīr Beg. They then seated him and her on one and the same white felt and raised him to the Khānship.[140]