[1] Apollo and Poseidon were angry at King Laomedon because he refused to pay the wage he promised them for building Troy's walls.
[2] Oracles promised deliverance if Laomedon would expose his daughter Hesione to be devoured by the sea monster Cetus (in other versions, the lot happened to fall on her) and he exposed her by fastening her naked to the rocks near the sea.
Therefore, Podarces henceforth became known as Priam, from ancient Greek πρίασθαι priasthai, meaning "to buy".
However, it is also claimed that Priam simply happened to be absent campaigning in Phrygia during Heracles' attack on Troy.
Priam was ultimately willing to accept the abduction of Helen, due to the Greeks' refusal to return Hesione.