Anyway, this is a really basic run down of what I know/remember of Norse mythology...
World began with Jotuns, frost giants. One, Ymir, had a cow who licked the ice and conjured Odin and his brothers. They killed Ymir and created Midgard.
Odin - Aesir, All-Father, God-King, Warrior-Chief, shaman, sacred king, ravens, wolves, runes, Sleipnir, blood brothers with Loki, Thor's father, Frigga is wife (Freyja?), Valhalla.
Freyja - Vanir, love and beauty, cats, golden necklace, daughter Noss, has hall with half warriors, Valkyries, possible triple/multi aspected, witchcraft?, missing husband Od.
Nine worlds held together by Yggdrasil - Asgard, (Byfrost) Midgard (serpent), Jotunheim, Muspellheim, Niflheim, Vanaheim, Hel, Svartalfheim, Alfheim.
Ragnarok, Fenris eats Odin, Gods die Midgard laid to waste. Ash and Embla first new people, second age (current) began.