Serenity

Mate of Altair.

Prefers to be called "Pleione."

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The Pleiad(e)s were the seven daughters of Atlas and Pleione, and half-sisters of the Hyades, whose mother was Æthra (`bright sky'; a different Æthra than the mother of Theseus). They were perhaps also half-sisters of the Hesperides, who were daughters of either Night alone, or Atlas and Hesperis (`evening'), or Ceto and Phorcys.

Both Pleione and Æthra were Oceanids, daughters of Oceanus and Tethys, the titans who ruled the outer seas before being replaced by Poseidon. Atlas (`he who dares' or `suffers'; from the Indo-European tel-, tla-, `to lift, support, bear'), another titan, led their war against the gods, and was afterward condemned by Zeus to hold up the heavens on his shoulders.

The Pleiades were also nymphs in the train of Artemis, and together with the seven Hyades (`rainmakers' or `piglets'; individual Hyad names are not fully agreed upon) were called the Atlantides, Dodonides, or Nysiades, nursemaids and teachers to the infant Bacchus. The Hesperides (`nymphs of the west'), apparently not counted in this, were only three, and dwelled in an orchard of Hera's, from which Heracles fetched golden apples in his eleventh labor.