It was said that the generals of king Christian IV always travelled with a chest of silver to pay for mercenaries.
In the winter of 1643-1644, Skanderborg Castle was besieged by Swedish forces and a group of Danish soldiers attempted to secure the silver and bring it to Aarhus.
[3][4][5] The lake suffers from high levels of chlorophyll, in the 2010s some 2.5 times higher than the ideal target.
There are 13 registered species of vegetation, although coverage is only some 2% of the lake bottom and it is unstable due to the high levels of phosphorus and nitrogen.
There are a total of 10 fish species including pike, rudd, roach, bream, perch, Zander, European eel, gasterosteiformes and burbot.