Janusz Radziwill is a claimant to the Polish Commonwealth throne. He is most likely to be found in Muscovite or Cossack taverns in order to avoid his enemies, the Polish. He plays a big role in The Secret of the Black Mace, the main quest for the Cossack Hetmanate. He mysteriously knows a lot about the Black Mace, including its location. He uses the character to help him become King of Poland in return for helping the character find the Black Mace. The hero Victor De La Buscador once served in Radziwill's personal bodyguard.