Goddess of love, beauty, fertility, magic, war and death. Freyja is the daughter of Njörd (Njord) and Njörd's nameless sister (possibly Nertheus?). She is the sister of Freyr. Like her brother and father, she was originally a Vanir goddess, but she later become an important goddess of the Aesir.
She is sometimes confused with Frigg, wife of Odin, since both of their names mean "Lady". Frigg sometimes also has the same attributes as Freyja. Another goddess, she is sometimes confused with Idun, the Keeper of the Apple of Youth.
Freyja is described as an extremely beautiful goddess, blonde and blue eyes.Freyja is the goddess of love and beauty. Freyja married a god named Od or Odur, and became mother of two daughters, Nossa or Hnossa, and Gersimi (both daughters' names mean "Jewel"). However Od had mysteriously disappeared. She wanderes the earth, searching for her husband, weeping tears of gold and amber.
After her husband (Od) had abandoned her or disappeared on her, she became the most promiscuous of all goddesses; she is the goddess of sex rather than of fertility. She had many love affairs, with gods, humans, elves and even dwarves. Freyja is often seen as the mistress of Odin. Loki had accused her of sleeping with every god in Asgard and all the elves in Alfheim (Poetic Edda's Lokasenna). Loki had even accused her of sleeping with her brother Freyr. Freyja and her brother were husband and wife when they were living in Vanaheim (land of the Vanir), just like their father with an unnamed sister. As I understand it, incest was normal practice among the Vanir deities, but the Aesir frown upon incest.
Freyja was much sought after by the giants. The giants, Hrimthurs and Thrym, both wanted to marry Freyja. Thor had killed both giants.

Freyja enjoyes combat and battle. She rides into the battlefield, where she receives half of the fallen heroes in combat; the other half goes to Odin in Valhalla. These warriors stay in her great hall, Fólkvangar ("battlefield"), within her palace Folkvang ("Field of Folk"). Her other hall is the Sessrumnir.
She has a great love for gold. Her most prized possession is the necklace Brísingamen. She received the necklace by sleeping with four dwarves known as the Brisings (their name are possibly Alfrigg, Berling, Dvalin and Grerr). Odin was disgusted by her sexual promiscuity that he sent Loki to steal the Brísingamen. The gatekeeper of Asgard, Heimdall, who had great vision, saw the theft. He pursued Loki and recovered the necklace for Freyja. In a later version, Odin would only return the Brísingamen, on the condition that she starts wars in the world of men.
Freyja received other gifts as well, such as a cloak of bird feathers (allowing her to transform herself into a falcon), and her chariot drawn by two cats. Another of her favourite animals is the pigs or boars. Her human lover Ottar disguises himself as a battle boar with golden bristles, known as Hildesvini. She is sometimes called Sýr (sow), an epithet. She is also known to have wandered the countryside at night, in the form of a she-goat.
She is also the goddess witchcraft and seidr (seior). Her love of gold and the witchcraft she practised, may have resulted in the confusion, surrounding her with another Vanir goddess, named Gullveig and the witch Heid, the reincarnation of Gullveig.