Do both Königskinder and The Knot Garden exist in multiple versions?
Königskinder Königskinder (German for "The King's Children") is a stage work by Engelbert Humperdinck that exists in two versions: as a melodrama and as an opera or more precisely a "Märchenoper". The libretto was written by Ernst Rosmer (pen name of Else Bernstein-Porges), adapted from her play of the same name.
Romkerhall Romkerhall (also frequently called "Romkerhalle") is a popular tourist destination on the River Oker in the Harz Mountains of Germany. There is a public car park here as well as a hotel and restaurant opposite the Romkerhall Waterfall. Romkerhall lies within the unincorporated area of Harz in the Lower Saxon county of Goslar in the Harz Mountains. The hotel and waterfall form a small tourist attraction which is marketed as the "Kingdom of Romkerhall - the smallest kingdom in the world!" (German: ""Königreich Romkerhall − das kleinste Königreich der Welt!"")