The History of Humāyūn (Gulbadan Begam) 107: CXXII. Māh-chūchak Begam Arghūn, Hājī Begam.

107

The word chüchak presents difficulties. Ilminsky writes chūchūq; Bāyazīd, chūchaq; Gul-badan, chūchak and jūjak; the Memoirs, chūchak. Mr. Blochmann and Mr. Lowe transliterate, jūjak. There is a Turkī word chūchūq, but its meaning of sweet-savoured is less appropriate for a woman's name than a word which, spite of vowel variation, it seems safer to take from the Persian, viz. chachah, a rose, and chachah, chūchah, a lovely cheek, a mole.
Daughter of Mīrzā Muhammad Muqīm Arghūn and of Bībī Zarīf Khātūn; wife (1) of Bābar’s fūjūkdār, Qāsim; (2) of Shāh Hasan Arghūn of Sind (died 963H.); (3) of ‘Īsā Tarkhān Arghūn of Tatta and Sind.
By Qāsim, she was mother of Nāhīd Begam and by Shāh Hasan of his only child, Chūchak or Māh-chūchak, Kāmrān's wife.
She had an interesting story which Mr. Erskine tells at length (B. & H., i, 348 et seq.).
On the death of 'Īsā (975H.) his son and successor Muhammad Bāqī Tarkhān, who was a madman, ill-treated Māh-chūchak and Nāhīd who was then visiting her. This led to a plot against him, but in the end Māh-chūchak was imprisoned by him and starved to death.