Inachos, the supposed son of Oceanos and Tethys, is affirmed to have been the founder of this kingdom. He married his sister Melissa, by whom he had two sons, Phoroneus and Aegialeus: he is supposed to be the father of Io, and therefore the Greeks are sometimes called "Inachoi" after him (see also the names of the Greeks).
Acrisios. A son of Abas. Twin brother of Proetos; they were rivals since the womb. Acrisios defeated and exiled Proetos and later shared the kingdom with him, surrendering to him Tiryns and eastern Argolis.
Perseus Eurymedon. Son of Zeus and Danaë (the daughter of Acrisios). Perseus never reigned at Argos, traded the kingdom of Argos for that of Tiryns (which had been ruled by Megapenthes) and established the city and kingdom of Mycenae.
Anaxagoras. A descendant of Megapenthes. The kingdom of Argos was divided into three parts. One third was given to Melampos and another to Bias (brother of Melampos) while Anaxagoras and his lineage continued to rule the central region.
Cisos or Ceisos. Temenos had left his kingdom to his son in law Deiphontes even though he had natural sons of his own. In consequence of this, Deiphontes was slain by the stratagems of the sons of Temenos, the eldest of whom, Cisos, became king.
After the death of Temenos, the royal prerogative began to decrease. To Cisos succeeded Lacidamos, who had little else than the title of king. His son Meltas, impatient of such restraint, endeavored, when it was too late, to restore it to its ancient dignity; but the people were by that time so powerful that, as soon as they discovered his plan, they ended the royal power, converted the government to a democracy, and condemned Meltas to death.
After Meltas, the kingship survived into historical times but rarely had any political power, one exception being the tyrant king Pheidon.