Eidyia (Idyia)

Eidyia is listed among the Oceanids, the many daughters of the primordial Titans Oceanus and Tethys. Within Greek mythic genealogies she is located in the locality of Colchis (Aia) and is named as the spouse of Aeëtes, king of Colchis. Through this marriage she is recorded as the mother of notable figures of the Medea/Aeëtes cycle—most prominently Medea—and thus functions in surviving tradition mainly as a familial and toponymic connector between elemental ancestry (the Oceanids) and the regional royal house of Colchis.

Surviving summaries and lexica identify Eidyia only by classification as an Oceanid-nymph and by her familial ties; no sustained physical description or iconography is recorded in the provided sources. As an Oceanid she is implicitly a water-associated nymph of the kind common in Greek myth, but the sources supplied do not specify age, clothing, distinguishing marks, or other visual particulars.

The available sources do not attribute individual supernatural deeds, specific powers, or characteristic behaviors to Eidyia herself. Her attested role in the tradition is genealogical—she anchors a royal lineage by marriage and motherhood—rather than functioning in preserved narratives as an active practitioner of magic or a demonstrably interventionist deity. No unique abilities or mythic episodes involving Eidyia are supplied in the cited material.