What is "rosenburg"

Rosenburg is a castle in the municipality Rosenburg-Mold, Lower Austria, Austria. Rosenburg is on a cliff above the valley of the River Kamp at an elevation of above sea level. It is one of Austria's most visited Renaissance castles. It is situated in the middle of a nature reserve - the Naturpark Kamptal - which adds to its appeal. There are various castles and fortifications in Austria and Germany that bear the name "Rosenburg", but if people use the term without further specifications, it may be understood that they refer to this site in Lower Austria. The well-known Austrian folk song "Es liegt ein Schloss in Österreich" ("There is a castle in Austria") is often assumed to refer to the Rosenburg.