According to Johannes Hofmann's 1588 description of the "Amt" of Lichtenberg, the border between the "Grumbacher Gebiet" and the County Palatine of Zweibrücken ran between the villages of Elzweiler and Welchweiler. In this description, Elzweiler is described as a "Hof" (“estate” or “farm”), thereby giving a clue as to the village's very small size at that time. Also named in the description is a "Kaisermühle" (“Emperor’s Mill”), which stood near Elzweiler on the Sachsbach. Another mill, the "Lorenzenmühle", later stood between Elzweiler and Horschbach. During the Thirty Years' War, Elzweiler was utterly wiped out. Wartime events and sickness took their heavy toll on the villagers, and by the time the war had ended, there were no longer any people living in the village. Bit by bit, though, it was repopulated with new settlers. In 1594, the village passed together with Niedereisenbach, Hachenbach, Horschbach and the villages in the Eßweiler Tal to Palatinate-Zweibrücken in exchange for Kirchenbollenbach. Thereafter, Elzweiler remained with the County Palatine until its downfall after French Revolutionary troops began their occupation.