The Norse Goddess Sif is the golden-haired wife of the God Thor. She may have been a fertility goddess. Her best know myth is when Loki the Trickster sneaked into Sif's bedroom and lopped off her hair. Furious, Thor threatened to smash him unless Loki managed to replace the hair. He then asked the dwarfs to spin gold as fine as Sif's hair and imbue it with magic that it will grow on her head. The dwarfs agreed and made a long wave of fine golden strands, which Loki gave to Sif.
