The paper expands the knowledge about Johann Georg of Brandenburg of the Hohenzollern family, Duke of Knov, an important representative of the anti-Habsburg Estates opposition at the beginning of the Thirty Years' War. It summarises his life story and presents in detail the last stage of his life, his death in Levoča, Hungary, in 1624 and his burial in Košice. It also highlights the role of Bethlen Gábor in the funeral festivites. It includes an edition of a contemporary account of the transport of the Duke of Krnov from Levoča to Košice and the course of the funeral.