Ali-Shir Nava'i
The most famous of the Chagatai poets is Ali-Shir Nava'i, who – among his other works – wrote "Muhakamat al-Lughatayn", a detailed comparison of the Chagatai and Persian languages, in which he argued for the superiority of the former for literary purposes. His fame is attested by the fact that Chagatai is sometimes called "Nava'i's language". Among prose works, Timur's biography is written in Chagatai, as is the famous "Baburnama" (or "Tuska Babure") of Babur, the Timurid founder of the Mughal Empire. A "Divan" attributed to Kamran Mirza is written in Persian and Chagatai, and one of Bairam Khan's "Divans" was written in the Chagatai language.