It belongs to the Verbandsgemeinde of Kelberg, whose seat is in the like-named municipality.
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Hörschhausen lies on Bundesstraße 257 which leads to the nearest major centres, such as Kelberg and Ulmen.
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The coins are one of several archaeological finds made in Hörschhausen, one of the richest archaeological sites in the Verbandsgemeinde of Kelberg, in the Landesmuseum Trier.
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In 1762, the chapel, which still stands today, was built and consecrated to Saint Apollinaris.
Until 1970, the municipality belonged to the Verbandsgemeinde of Daun, when it, along with Beinhausen, Boxberg, Brück, Hörschhausen and Neichen, was annexed to the Verbandsgemeinde of Kelberg.
The French administration made Sarmersbach the administrative seat of the like-named mairie (“mayoralty”), to which belonged not only Sarmersbach but also Beinhausen, Boxberg, Kradenbach, Gefell, Hörschhausen, Katzwinkel, Neichen, Nerdlen, Schönbach and Utzerath.