Óttar (mythology)

He appeared in Hyndluljóð (the Lay of Hyndla), a poem in the Poetic Edda.

He built a shrine of stones, a hörgr, and on it made many offerings to Freyja.

Freyja disguised Óttar as her boar Hildisvini (the Battle-Swine) and brought him to the gýgr Hyndla, a seeress.

There, Freyja forced Hyndla to tell Óttar about his ancestors, as well as to give him a memory potion so that he would remember all that he was told.

It has been theorized that the framework of the poem was created for the 12th-century poet to produce a list of mythical heroes' names.