Lysidice or Lysidike (Ancient Greek Λυσιδίκη), daughter of Pelops and Hippodamia, married Mestor son of Perseus and became mother of Hippothoe — whose abduction by Poseidon began the Taphian line. Some authors also make her mother of Alcmene by Electryon; Pausanias prefers other stemmata for Amphitryon's house.
Adapted from Wikipedia, "Lysidice (mythology)" · CC BY-SA 4.0
I.Wife of Mestor
Apollodorus places Lysidice among Pelops' daughters and makes her consort of Mestor at Mycenae. Their daughter Hippothoe is carried off by Poseidon to the Echinades, where she bears Taphius — ancestor of the Taphian raiders who later kill Electryon's sons.
A rival genealogy sometimes makes Lysidice mother of Alcmene by Electryon; Pausanias explicitly rejects Pelops' daughter Lysidice as mother of Amphitryon, preferring Laonome.
II.Homonym care
Other Lysidices include a Thespian princess who bore Teles to Heracles, a daughter of Coronus mother of Philaeus by Ajax, and an Aeolid of Lipara. The atlas id lysiddice-pelops is only the Pelopid wife of Mestor.