In ancient Greek religion, mystic divinities chiefly worshipped at Samothrace, Lemnos, and Imbros, but also at Thebes, Pegamos, and elsewhere. They were regarded by most early writers as children of Hephaestos, but little is known of their character or the nature of their worship. They are identified by some with Demeter, Persephone, and Rhea; by others with the Dioscuri (Castor and Pollux); by others again with the Roman Penates.
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