In Greek mythology, Astydameia is the name of three characters.
Astydameia, Queen of Iolcus
Astydameia, was the Queen of Iolcus and wife of Acastus. She was the daughter of either of Cretheus, Pelops, or Amyntor Acastus purifed Peleus of the murder of King Eurytion of Phthia. Astydameia, Acastus' wife, fell in love with Peleus but he scorned her. Bitter, she sent a messenger to Antigone, Peleus' wife and daughter of Eurytion, to tell her that Peleus was to marry Acastus' daughter, Steropes; Antigone hanged herself. Astydameia then told Acastus that Peleus had tried to rape her. Acastus took Peleus on a hunting trip and hid his sword, then abandoned him right before a group of centaurs attacked. Chiron, the wise centaur, returned Peleus' sword and Peleus managed to escape. He got the help of Castor and Pollux pillaged Iolcus and dismembered Astydameia, then marched his army between the pieces. Acastus and Astydamia were dead, and the kingdom fell to Jason's son, Thessalus.
Astydameia, Daughter of Amyntor
Astydameia was the daughter of Amyntor, or of Ormenius, king in Pelasgiotis. She bore Heracles a son, Ctesippus.
Astydameia, Daughter of Pelops
Astydameia was the daughter of Pelops and Hippodamia. She married Alcaeus and had children by him: Amphitryon, Anaxo, and Perimede. Alternative: Astydamia, Astydamea
