Additionally, the theory's supporters also held the view that Västergötland and the region of Lake Vänern was in fact the land of "Sithun", translated into modern day language as Sigtuna, where Odin and his Aesir companions supposedly settled when they came to Scandinavia.
An early predecessor of the theory was Pehr Tham (1737–1820), who during the 19th century unsuccessfully tried to promote ideas such as the village Sätuna being the location of Old Sigtuna, and the ancient town of Birka being situated somewhere around Lake Hornborga.
The early proponents of the Götaland theory proposed ideas about Västergötland, and the Vänern lake region, in particular, being the origin not only of the Geats, but also of the Suiones, the Danes; and furthermore the location of various phenomena in Norse mythology, such as Odin's Sithun (Sigtuna), Valhall, and the ash tree Yggdrasil.
Other parts of the extensive work of Snorri Sturluson (and other saga writers) may however be considered valid references for finding elements of the ancient history of Scandinavian people and their religious customs and beliefs.
[3] Carl-Otto Fast, founder of the Westrogothian School ("Västgötaskolan"), was a known Nazi[4] who some claim collaborated with SS Ahnenerbe, Richard Walther Darré and eugenicists from Hadamar in Germany.
Archaeologist Magnus Alkarp, who has studied classified and semi-classified documents from the post-war era, has showed that the Westrogothian School was, among some regional, right-wing separatists movements in Scandinavia, an important part of the Operation Gladio.