Which of these 4 rulers was the greatest?

Who was the greatest ruler out of these 4?

  • Total voters
Jul 2013
NW Indiana
Well, Louis IX had some civic accomplishments; Nevsky military. Why would Monge and de Montfort be included?
Just to nit-pick, neither de Montfort was a ruler.
Mongke led a far, far larger empire than the other three combined and during his reign, there were a number of significant military conquests such as the move into India and Korea.