Jan z Jani
Jan z Jani (Joannes de Janie in Medieval Latin, Jan von der Jane in German) (1400–1461) - of the Clan of Ostoja was the first Polish voivode of Pomerelia (from 1454 to 1461) and one of the leaders of the Prussian Confederation, serving as a commander in the Thirteen Years' War. He was also the Lord of Regality of Tczew, Nowe and Kiszewskie, Lord of Starogard, Rabelnaw, Robaw, Pancze, Wonental, Szwarczenwalt, Weisenwalt, Moealwalt, Landesende, Turze, and Lord of Gniew.