His father , Tydeus , was himself of royal blood , being the only son of Oeneus , the king of Calydon .
Diomedes was , on his father 's side , an Aetolian , and on his mother 's an Argive .
Diomedes ' father , Tydeus , was himself of royal blood , being the only son of Oeneus , the king of Calydon .
Diomedes was , on his father 's side , an Aetolian , and on his mother 's an Argive .