Horneck Castle is also known as Burg Horneck, Deutschordenschloss Horneck and Schloss Horneck.
A castle located in the town of Gundelsheim, district of Heilbronn, Baden-Württemberg, in southwest Germany. Its name is thought to mean "over the Neckar," as it is overlooking the Neckar River.
Wikipedia https://en.wikipedia.org/wiki/Horneck_Castle,_Germany
Coordinates 49°17'12.711" N 9°9'22.506" E