Prussian Tribes in the 13th Cent. (1200–1301)Lithuania Minor description Prussian Tribes in the 13th Cent. Cities/castles were built by Teutonic Knights to facilitate conquest. Old Prussian clans of Galindians, Sudovians, Sasna, and Lubavia as well as Kulmerland were subjected to numerous incursionsand conquests by recently arriving Slavs. Year – Author – Sources –