Battle of Messene happened in -397.

They conquered the rich region of Messene in 715 B.C. They made the Messenians state slaves

No.

Hera was the Queen of Heaven, wife of Zeus.

Alcmene was the mortal daughter of Electryon, king of Messene, by Anaxo, the daughter of Alcaeus.

According to other accounts her mother was called Lysidice or Eurydice.

The poet Asius represented Alcmene as a daughter of Amphiaraus and Eriphyle.

Alcmene was married to Amphitryon, and mother of Heracles by Zeus, and of Iphicles by Amphitryon.

There were scores of city-states in mainland Greece - some obvious ones are Argos, Athens, Corinth, Delphi, Epidaurus, Eretria, Lamia, Laodicea, Megara, Plataia, Sparta, Tegea, Thebes.

The children of Andromeda and Perseus;

Perses, king and founder of Persia.

Alcaeus, king of Troezen, father of Amphitryon the father of Heracles by Alcmene.

Sthenelus, king of Tiryns and Mycenae; succeeded Electryon.Heleus, founder of Helos. Mestor, husband of Lycidice. Electryon, king of Mycenae, father of Alcmene the mother of Heracles.Gorgophone, wife of Oebalus king of Sparta, and Perieres king of Messene. Mother by Oebalus of Tyndareus, Arene, and Icarius. By Perieses she was mother of Aphareus, Leucippus, and Halirrothius. Cynurus, founder of the city Cynura.

Autochthe, a wife of Aegeus; she might have had daughters.