Amphitrite

Amphitrite was a nymph who seduced Elder God Poseidon and report back to the Titans, Amphitrite became pregnant just before Poseidon's imprisonment. Following his release, the two married to secure the loyalties of the sea nymphs and unite the Nereid and Oceanid clans, Poseidon went against his romantic pursuit of Demeter and married Amphitrite. However, the two grew to deeply love one another and her death has left Poseidon full of unrelenting rage.