sentences:  The mill was left out of this process, and was still owned by the Kellenbachs’ heirs until 1875.In 1798, Niedereisenbach was declared French territory and passed within the German lands on the Rhine's left bank that had been annexed by France to the Department of Sarre (whose seat was at Trier), the Arrondissement of Birkenfeld, the Canton of Grumbach and the "Mairie" ("Mayoralty") of Offenbach.In 1816, after the Congress of Vienna, Niedereisenbach passed to the Principality of Lichtenberg (whose capital was Sankt Wendel), a newly created exclave of the Duchy of Saxe-Coburg-Saalfeld, which as of 1826 became the Duchy of Saxe-Coburg and Gotha.