Medieval: Directed by Petr Jákl. With Ben Foster, Sophie Lowe, Michael Caine, Til Schweiger. The story of fifteenth century Czech icon and warlord Jan Zizka, who defeated armies of the Teutonic Order and the Holy Roman Empire. The story of 14th century Czech icon and warlord Jan Zizka who defeated armies of the Teutonic Order and the Holy Roman Empire.