In Greek mythology, Alcathous was a son of Pelops and Hippodamia. With the aid of Apollo, Alcathous rebuilt the walls of Megara, for which the king, Megareus, gave him his daughter, Periboea as a wife.
Alcathous 3 is said to have restored (with Apollo's help, who placed his lyre on a stone), the walls of Megara which had been destroyed during the Cretan invasion.
Ischepolis, son of Alcathous 3, is counted among the CALYDONIAN HUNTERS, and was killed by the wild beast during the hunt.
So he came running to meet Alcathous 3 and tell him the bad news when Alcathous 3 was preparing a fire to sacrifice to Apollo.
This girl and her sisters, all daughters of Minyas, the man who owned a marvellous treasure in Orchomenus, refused to honour Dionysus 2, and for that reason she was turned into a bat, or perhaps Hermes turned her into a bird [Lib.Met.10; Ov.Met.4.1, 4.410].
Alcathous 1 is the second suitor of Hippodamia 3, and like all her suitors (except Pelops 1), he was killed by her father Oenomaus 1.
Alcathous 1 is brother of King Oeneus 2 of Calydon, the man who assembled the CALYDONIAN HUNTERS [Apd.1.7.10, 1.8.5; Dio.4.65.2; Pau.6.20.17, 6.21.10].