They lived in Bartia (also Bartenland or Barthonia), a territory that stretched from the middle and lower flow of Łyna river, by the Świna river, and Lake Mamry, up to the Galindian woods.
In 1319 David was in charge of 800 men who raided Prussia as far as Łyna river.
Łyna, Warmian-Masurian Voivodeship (German: Lahne), a village in Poland near the source of the river
•
Łyna River (Russian: Лава Lava, German: Alle), a river in Poland and Russia
Lev Kopelev, a Soviet officer and later dissident, described how he was appalled by the acts of murder and looting against those who remained.
In the 13th century when the Teutonic Knights began their crusade against the Prussians, some 15,000 people might have lived in the area between the rivers identified by the Knights as Pregel (now Pregolya) and Alle (now Łyna).