Frigg

Snorri calls Frigg the highest of the goddesses and names her father as Fjörgynn. She is Odin's wife, and Snorri says the family of the Æsir descends from the two of them. Her hall is Fensalir, which he calls very splendid. Snorri also names three goddesses who serve her: the maiden Fulla carries her casket, looks after her shoes and shares her secrets; Hlín guards the people Frigg wishes to protect from danger; and Gná rides the horse Hófvarpnir through sky and sea on Frigg's errands.
What the sources stress is her knowledge. Snorri says she knows the fates of men, though she does not prophesy, and quotes a verse in which Odin tells Loki so; in Lokasenna as it survives in the Codex Regius, a version of the same verse is spoken by Freyja (st. 29). In Vafþrúðnismál Odin asks her advice before visiting the wise giant Vafþrúðnir. She would rather keep him at home, then wishes him a safe journey. In the prose of Grímnismál she wagers with Odin over their two foster-sons and sends Fulla to warn King Geirröðr against a sorcerer. Her claim that Geirröðr starved and tormented his guests was false, the prose says, but the warning makes him seize and torture the stranger, who is Odin in disguise.
Her best-known story is Baldr's death. When Baldr dreamed of danger to his life, Frigg took oaths from fire and water, iron and every metal, stones, earth, trees, sicknesses, animals, birds, poison and snakes that they would not harm him. Loki came to Fensalir disguised as a woman and learned from her that one young shoot west of Valhalla, the mistletoe, had seemed too young to ask for an oath. After Baldr was killed, Frigg asked who would ride the road to Hel to offer a ransom, and Hermóðr went. Völuspá says Frigg wept in Fensalir for Valhalla's woe (st. 33), and calls Odin's death at Ragnarök 'Hlín's second grief' (st. 53); since the same stanza calls Odin 'Frigg's beloved', Hlín is usually read there as another name for her.
She is older than the Icelandic texts. The Old English weekday Frīgedæg, Friday, carries the name of the matching goddess Frīg. The second Merseburg charm, written in the 10th century on a blank leaf of a 9th-century manuscript, names Friia and her sister Volla among those who charm a horse's injured foot. The 7th-century Origo gentis Langobardorum tells how Frea, wife of Godan, had the Winnili women wear their hair loose around their faces like beards, so that Godan named them Longbeards and gave them victory; Paul the Deacon retold it and called it a laughable tale. Ynglinga saga (ch. 3) adds that while Odin was long away, his brothers Vili and Vé both took Frigg as wife, and in Lokasenna Loki throws the same charge at her (st. 26).