Axis said:
It's Jan Žižka (Zizka if the diakritics will not work). General of Hussites. In battle he lost an eye and most of his portraits are with sash over it. He was a great strategist. If he want to awoid enemy cavalry from battle, he led his army to a swamp through save paths and enemies, which didn't know them, were too demoralized when they reached hussites. Hussites most powerful weapon was wagons. If hussite army was attecked, they made a circuit from Wagons and turnd them to a side-wall, so they had a really good barrier.
Hussite army was poor and their weapons were made from a village-tools, flails etc. Hussites modiffied tools a bit and the result was a weapon which were in much cases better than ordinary spears, because they were more moveable.
In later battle Žižka lost his second eye. But as blind he was as good as before. He has good imagination so the soldiers described him the battlefield and he could command.
Hussite army was known over the whole Europe as undefeatable in that time!
Hussites had two fractions: radicals and modests. Radicals wage the war and the modests stood in seclusion. But at the end of hussite era modests turned to enemies and undefeateble hussites were defeated.
Capital of hussites was city Tábor in south bohemia.