Sif

In Norse Mythology, Sif was the goddess of crops and fertility, married to Thor. At one point, Loki stole her hair and had to replace it. He went to the dwarves and had them make her a new set of hair out of gold. An interesting thing to note is that short hair was a sign of a whore or a slave.

Source: Nicole Cherry, A list of Norse Beings, originally at www.ugcs.caltech.edu/~cherryne.
Copy still available at www.angelfire.com/wy/wyrd/list.html