Yaqub Beg
The term 'Seven Cities' may have been used after Yaqub Beg captured Turpan (Turfan), and referred to (1) Kashgar; (2) Yarkant; (3) Khotan; (4) Uqturpan (Uch Turfan); (5) Aksu; (6) Kucha; and (7) Turpan.