Summary: In 1542 the demarcation of the border between Livonia and the Great Duchy of Lithuania (GDL) has been organized. Boundary commissioners have met near lake Kurcums and further have parted in two directions - on the East («up to borders Moscow») and on the West «up to the Salty sea» (Baltic sea). Materials of work of the commission mainly on the Belarus-Latgale site of border make the maintenance of the 560 Book of the Metrica of the GDL. Commissioners established boundary markers and simultaneously wrote down complaints of local population to actions of the Livonian officials and land owners. In these complaints the huge sums of damage are listed, and the stolen herds of animals always are estimated in the whole tens (10, 20, 30,40, etc.).
How much real these figures? With what we deal in case of with complaints of boundary inhabitants? Is it special distortion of the information or specific display of consciousness? Most likely the picture of not divided consciousness of the person of the end of the Middle Ages and early Modern Time appears at us - with integers and traditional images of expression of insult.