Considering that she may have started a cosmic war, we know very little about the Norse goddess Gullveig. Her story comes from the Eddic poem Völuspá, which tells how the Aesir riddled her with spears and then burned her three times but couldn’t kill her.
The next event in the poem is the war between the Aesir and Vanir, the two groups of Norse deities, so it’s always been assumed that somehow the attack on Gullveig started it.