She was the daughter of the sun god Helios and the wife of Minos, the king of Crete. When the sea god Poseidon sent a white bull as a sign of Minos' right to rule the island, the king refused to sacrifice the animal.
Poseidon did not take kindly at this lack of respect and cursed Pasiphae with a passionate desire for the bull. But wait there is more. Her lust was unwaining and she got the craftsman Daedalus to make an artificial cow, into which she could fit and mate with the bull. The result of this rather beastly affair was the Minotaur (Minos Bull), which was kept in a labyrinth.