Passage: The word Chagatai relates to the Chagatai Khanate (1225 –1680s), a descendant empire of the Mongol Empire left to Genghis Khan's second son, Chagatai Khan. Many of the Chagatai Turks and Tatars, who were the speakers of this language, claimed descent from Chagatai Khan.

Question: What empire did Chagatai Khan inherit?
Mongol Empire