Johann IX Philipp von Walderdorff (1701–1768), Prince-Elector of Trier, constructed the palace between 1759 and 1764 based on a design by the architect Johanness Seiz [de].
Today the palace is now one of the two locations of Villa Musica, a foundation of the German state Rhineland-Palatinate and the broadcaster Südwestrundfunk.
Kuno II of Falkenstein (1320–1388), Archbishop and Prince-Elector of Trier, acquired the town of Engers in 1371 and built Kunostein Castle on the banks of the Rhine.
[1] His brother and successor, Werner von Falkenstein (1355–1418), relocated the toll station from Stolzenfels Castle near Koblenz to Engers.
[2] Johannes Seiz involved stuccoist Michael Eytel, painter Januarius Zick from Koblenz, and sculptor Ferdinand Dietz to help with the interior.
[1] Directly adjacent to the castle upstream is the neo-baroque residential house for the masters (known as the Meisterhaus), built around 1900, who were trained at Heinrich-Haus.