List of largest Empire, Medieval Period

1.Mongol Empire - 33.0 million km sq. (1270 AD)

2. Yuan Dynasty - 14.0 million km sq (1310 AD)

3. Umayyad Caliphate - 13.0 million km sq ( 720 or 750 AD)         xxxxxxxxxxxx

15. Pala Empire, India - 4.0 million km sq (850 AD)                        xxxxxxxxxxx

21. Chola Dynasty, India - 3,6 million km sq (1050 AD)