The History of Humāyūn (Gulbadan Begam) 123: CXXXVIII Mihr-banu Khanam

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I think she is a relative of Babar, and she may be the daughter of ’Umar Shaikh and Umid, and thus Babar's half-sister. (See infra.) From her title of Khanam, she is very possibly a Chaghatai on her mother’s side (Umid was an Andijani), or the style is due to her marriage with a khan. She appears to have married a man of high rank, perhaps Kuchum (Quch-kunji) Khan who was khaqan of his tribe from 1510 to 1530, or his son and successor (ruled from 1530 to 1533). She had a son Pulad whom Babar mentions as fighting with ‘Quch-kunji’ and his son Abu-sa'id Uzbeg at Jam (1528).
The Quch-kunji was the tribe of Isan-daulat. Kuchum, Abu-sa'id, Mihr-banu, and Pulad sent ambassadors and messengers to Babar in the same year, and Babar mentions his return gifts with quaint particularity. The envoys were entertained at a feast by him on December 12th, 1528 (935H.).
Mems., 10, 390, 396, 397, 399. Tar. Rash., E.D., s.n. Kuchum and Sultan and 206 n. Muhammadan Dynasties, Stanley Lane Poole, 278.