This is a reference to the Battle on the Ice of Lake Vänern, during which Eadgils slew Onela and which also appears in the Skjöldunga saga.
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These sources also deal with his war against Onela, which he won with foreign assistance: in Beowulf he gained the throne of Sweden by defeating his uncle Onela with Geatish help, and in two Scandinavian sources (Skáldskaparmál and Skjöldunga saga), he is also helped to defeat Onela in the Battle on the Ice of Lake Vänern, but with Danish help.
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Snorri relates that Aðils was in war with a Norwegian king named Áli (Onela), and they fought in the Battle on the Ice of Lake Vänern.
This was due to environmental circumstances brought about by the relationship between the Vänern basin in the east, and topographical features in the North Sea basin to the west.
It has its border with the great lake Vänern in the east and is in the middle of Dalbo plain.
Snorri then relates that Aðils was in war with a Norwegian king named Áli, and they fought in the Battle on the Ice of Lake Vänern.
The city is located on the southern shores of lake Vänern, close to where the river Göta älv leaves the lake.
The tale then tells of Víkar's successful battle at Lake Vænir (Lake Vänern) against King Sísar (Sísarr) of Kiev, of Víkar's defeat of Herthjóf's brother King Geirthjóf (Geirþjófr) of the Uplands in a war in which Geirthjóf fell in the First battel of Telemark, and how Víkar then took over not only the Uplands but also Telemark which belonged to Geirthjóf's brother Fridthjóf who was not there at the time.
Viking scolds this son and sends him to an island in Lake Vänern.
Vänern |
Harald then proclaimed himself the ruler of all land north of Göta älv and north and west of lake Vänern and placed Guttorm Haraldsson to defend the region with a large force.
He started building a railway between the town of Köping and Hult (a small port at Lake Vänern).