Until the French Revolution, the local lordly relations did not change very much. Steinbach lay in the Leyens’ Münchweiler valley while Trahweiler lay in the Duchy of Palatinate-Zweibrücken. As a matter of principle, there were good ties between Zweibrücken and the Counts of Leyen. According to a church Visitation protocol, there were 48 people living in Frutzweiler in 1609: 10 men, 11 women, 26 children and one manservant. Frutzweiler then already belonged to the parish of Quirnbach. Corresponding figures for Steinbach from that time are unavailable. Both villages were heavily stricken by the events of the Thirty Years' War and the Plague. Only a few survived the war. Repopulation followed. A few years after the Thirty Years' War, the Leyens began to expand their holdings to the rivers Blies, Saar and Glan. The villages of the Münchweiler valley within this widely scattered landhold were grouped together as an "Unteramt" of the whole lordship. Only in 1773 did the comital couple of Franz Karl von der Leyen and Marianne "née" Dalberg move the residence from Koblenz to Blieskastel. After Count Franz Karl's death in 1775, his wife Marianne assumed the regency for their young son Philipp. When Blieskastel was occupied by French Revolutionary troops, the Countess managed to flee and, with some support, get herself first to Koblenz and later to Frankfurt. Under Napoleon’s rule, the Leyens were allowed to have their personal holdings back. Both villages, Steinbach and Frutzweiler, at the time of French rule after 1801 belonged to the Department of Sarre, whose capital was at Trier. Steinbach belonged to the Canton of Waldmohr, the Arrondissement of Saarbrücken and the "Mairie" (“Mayoralty”) of Glan-Münchweiler, while Frutzweiler belonged to the Canton of Kusel, the Arrondissement of Birkenfeld and the "Mairie" of Quirnbach.