LTReikšminiai žodžiai: Šlėkta; 1431 Lenkijos-Lietuvos karas; Pilietinio karo skelbimas. Keywords: Nobility, Polish-Lithuanian War 1431; Letter of feud.Reikšminiai žodžiai: Lietuvos Didžioji Kunigaikštystė (LDK; Grand Duchy of Lithuania; GDL); 15 amžius; Švitrigaila, 1370-1452 (Boleslovas Švitrigaila, Svidrigiello, Boleslau Switrigail); Valdovai; Bajorai; Karai; Laiškai; 15th century; Rulers; Nobility; Wars; Letters.
ENThe published text concerns one episode referring to the Polish-Lithuanian war in 1431. So far it has been used on the whole only through a short regestum. Thereby we can explore forty five personally known participants of the Lutsk’ expedition, who sent letters of feud to the grand duke of Lithuania Svitrigaila from the military camp in Bystrzyca, in Lublin Land, on 3 July 1431. One of the letters, which was written by castellan of Cracow Nicolas of Michalov, is preserved and it is published in the Annex. [From the publication]