 Pelias was the son of Tyro and Poseidon.His wife is recorded as either Anaxibia, daughter of Bias, or Phylomache, daughter of Amphion.He was the father of Acastus, Pisidice, Alcestis, Pelopia, Hippothoe, Amphinome, Evadne, Asteropeia, Antinoe and Medusa.