Jørgen Kaas was a Danish colonel, lord of the fiefdom Lister in Norway, and owner of the Hastrup and Østergaard estates in Denmark. A member of the younger Kaas family, one of Denmark's preeminent families of ancient high nobility, he is notable as a war hero during the March across the Belts when he led the defense of Fyn against the Swedes and fell in battle. King Charles X Gustav of Sweden accompanied his body on foot in honour of his bravery. He was given the fief of Lister by King Christian IV on 30 December 1648, after he had sold his estate Østergaard to the King's son Ulrik Christian Gyldenløve. He never resided in Norway, and the fief was administered by the fiefholder of Nedenes.