Чагатай
Chughtai or Chagatai (, ) is a family name that originated in the Chagatai Khanate as taken up by the descendants and successors of Chagatai Khan who was the second son of Mongol Emperor Genghis Khan. Accordingly, some of the other descendants of the successors of Chagatai Khan in South and Central Asia use variants such as Mirza, Baig and Khan.