Myrkviðr (Old Norse "mirky wood, dark wood" or "black forest") is the name of several European forests.
The direct derivatives of the name occur as a place name both in Sweden and Norway, and related forms of the name occur elsewhere in Europe, most famously the Black Forest (Schwarzwald), and may thus be a general term for dark and dense forests of ancient Europe.
Danheim is a Nordic folk/Viking inspired project from the Copenhagen-based Danish producer Reidar Schæfer Olsen, focusing on Nordic Folk and Viking age inspired music . Danheim's music is often composed with ideas and stories based on the darker side of the Viking period, inspired or consisting of Nordic Mythology, old Danish folklore and a vivid imagination.