The year 1361 is important in Schmidthachenbach's history, for this date was to be found on the lintel over the old town hall's door. In 1393, the castle and the "Amt" of Naumburg fell under the lordship of the Counts of Sponheim, whom the Counts of Oberstein owed allegiance. The Obersteins themselves held the patronage and tithing rights at the parish church at Becherbach, within whose parish lay Schmidthachenbach. This put the village in the “Further” County of Sponheim. In 1439, Wyrich von Dune, Lord of Oberstein, was enfeoffed by the Archbishop of Trier with the castle.