Gylfaginning in the Prose Edda and the Ynglinga saga tell how the supposedly historic (Non-deified version of Odin) Odin and his people the Æsir and Vanir, who later became the Swedes, obtained new land where they built the settlement of Old Sigtuna.
In Norse mythology, according to the Gylfaginning, Annar (Old Norse Annarr 'second, another') is the father of Jörð (Mother Earth) by Nótt (the Night).
Snorri Sturluson states in his Gylfaginning (34) that "Loki's brothers are Býleistr and Helblindi", and several Eddic texts use the Loki-kenning "brother of Býleistr" (bróðir Býleists) (Völuspá, 51; Hyndluljóð, 40; Skáldskaparmál, 16).
the name of the ancient Swedish king Gylfi, given while in disguise, as described in the book Gylfaginning collected in the Prose Edda
According to Húsdrápa, Freyr rode Gullinbursti to Baldr's funeral, while in Gylfaginning, Snorri states that Freyr rode to the funeral in a chariot pulled by the boar.
The spring is mentioned a third time in Gylfaginning where High recounts its source: the stag Eikþyrnir stands on top of the afterlife hall Valhalla feeding branches of Yggdrasil, and from the stag's antlers drips great amounts of liquid down into Hvergelmir.
In chapter 42 of the Prose Edda book Gylfaginning, High tells a story set "right at the beginning of the gods' settlement, when the gods at established Midgard and built Val-Hall" about an unnamed builder who has offered to build a fortification for the gods that will keep out invaders in exchange for the goddess Freyja, the sun, and the moon.
The plotline of the story is based on the myths of Thor's expedition to Jotunhem as told in the Gylfaginning section of Snorri Sturluson's Prose Edda, and the Völva's prophecy regarding Ragnarok in the poem Völuspá, preserved in the Poetic Edda.