Пруссы
The region was originally inhabited by the Old Prussian clan of the Warmians from whom the name Warmia originated. During the northern Crusade, the Old Prussians were conquered by the Teutonic Order and their land was granted to the order by the pope and the region became part of the State of the Teutonic Order. The Order encouraged the colonization by German settlers in Warmia (Ostsiedlung) and Polish colonists from the region of Masovia, called Masurians ("Mazurzy"), hence the name Masuria. The Old Prussians became assimilated into the newcomers and thus became extinct.