Historia de Gentibus Septentrionalibus is a work by Olaus Magnus on the Nordic countries, printed in Rome in 1555. It long remained for the rest of Europe the authority on Swedish matters. Its popular
"On the three Main Gods of the Geats." From left to right; Frigg, Thor and Odin.
"The Alphabet of the Geats", showing the runic alphabet used by the Geats.
Sywardus
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In the twelfth-century Danish history Gesta Danorum, Siward,, was an ancient king in Götaland, who had a daughter named Alfhild, who became a legendary Viking pirate.
Alf killing the two serpents who were guarding Siward's daughter. From Olaus Magnus' A Description of the Northern Peoples from 1555.