Nymphs

The Nymphs. Among which is Calypso who marooned Odysseus for 7 years. (they had a son Nausinous) She died when she finally let Odysseus go.

And there are Siren. O, the Sirens and their death lulls. The hero Odysseus escaped the Sirens by having his sailors plug their ears, and have them tie himself on a mast, for he actually wanted to hear the Siren songs but without adverse effects. (Siren are sea nymphs whose body supposed to be partially bird one way or another. But later on they merged into mermaids.).

Thetis is a sea nymph. She is the mother of Achilles (the greatest warrior, most famous for trojan war and “Achilles's heel”.) Achilles's dad is Peleus, king of the Myrmidons.

Zeus had received a prophecy that Thetis's son would become greater than his father. Therefore, in order to ensure a mortal father for her eventual offspring, Zeus and his brother Poseidon (sea god) made arrangements for her marriage to a man, Peleus, son of Aeacus, but she refused him. Chiron, the wise centaur, who would later be tutor to Peleus' son Achilles, advised Peleus to find the sea nymph when she was asleep and bind her tightly to keep her from escaping by changing form. She did shift shapes, becoming flame and then a raging lion (compare the sea-god Proteus). But Peleus held fast. She then consented to marry him.