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.
Gottorfer Codex The Gottorfer Codex (German) or det gottorpske kodeks (Danish) is a four volume work commissioned by Frederick III, Duke of Holstein-Gottorp between 1649 and 1659 to depict the wide assortment of plants that grew in the ducal gardens at Gottorf Castle ("Gottorp") in the duchy of Schleswig.