A lesser known Aesir god of Asgard concerned with the moods of the sea and their implications for mariners. The river Eider was known to the Vikings as "Aegir's Door". Aegir is also depicted in some poetry as the "Ale Brewer", perhaps an allusion to the cauldrons of mead that were thought to come from under the sea.
There are references in literature to Saxons sacrificing captives, probably to Aegirr, before setting sail for home. Linked in an uncertain manner to the Goddess Ran, he was believed to have sired nine children, all whom were the waves of the sea. These children were possibly some of the Giantesses.