Well... It's Jan Hus, a Czech (or Bohemian) early religious reformer in the catholic church. Was later burned at the stake for his views. His followers were so fucking pissed off that it took a grand total of FIVE papal crusades to get rid of them, and even then, their ideals led to the foundations behind the Protestant reformation and still exist as the Moravian Church.
I'm not religious at all, but I like the thought of one man inspiring an entire religious movement and leading to the reformation to be pretty fucking awesome.
My choices were between Hus, Jiri z Podbrady or Skanderbeg