Gamla Uppsala – image: Wikimedia
Adam of Bremen, an 11th century German chronicler, wrote a description of the temple at Gamla Uppsala:
In hoc templo, quod totum ex auro paratum est, statuas trium deorum veneratur populus, ita ut potentissimus eorum Thor in medio solium habeat triclinio; hinc et inde locum possident Wodan et Fricco. Quorum significationes eiusmodi sunt : ‘Thor’, inquiunt, ‘praesidet in aere, qui tonitrus et fulmina, ventos ymbresque, serena et fruges gubernat. Alter Wodan, id est furor, bella gerit, hominique ministrat virtutem contra inimicos. Tertius est Fricco, pacem voluptatemque largiens mortalibus’. Cuius etiam simulacrum fingunt cum ingenti priapo.
In this temple, entirely decked out in gold, the people worship the statues of three gods in such ways that the mightiest of them, Thor, occupies a throne in the middle of the chamber; Wotan and Frikko have places on either side. The significance of these gods is as follows: Thor, they say, presides over the air, which governs the thunder and lightning, the winds and rains, fair weather and crops. The other, Wotan—that is, the Furious—carries on war and imparts to man strength against his enemies. The third is Frikko, who bestows peace and pleasure on mortals. His likeness, too, they fashion with an immense phallus.
Adam of Bremen: Gesta Hammaburgensis 26