In Greek mythology, Adrastus or Adrestus (Ancient Greek: Ἄδραστος or Ἄδρηστος, perhaps meaning "the inescapable") was a king of Argos, and leader of the Seven against Thebes. He was the son of the Argive king Talaus, but was forced out of Argos by his dynastic rival Amphiaraus.
“and wealthy Corinth, and well-built Cleonae, and dwelt in Orneiae and lovely Araethyrea and Sicyon, wherein at the first Adrastus was king; and they that held Hyperesia and steep Gonoessa and Pellene,”
Il. 2.570–574
“Wherefore now let Tydeus' son, for all he is so mighty, beware lest one better than thou fight against him, lest in sooth Aegialeia, the daughter of Adrastus, passing wise, wake from sleep with her long lamentings all her household, as she wails for her wedded husband, the best man of the Achaeans, even she,”
Il. 5.410–414
“for so I ween was the will of Zeus and the other gods. And he wedded one of the daughters of Adrastus, and dwelt in a house rich in substance, and abundance was his of wheat-bearing fields, and many orchards of trees round about, and withal many sheep; and with his spear he excelled all the Argives.”
Wherefore now let Tydeus' son, for all he is so mighty, beware lest one better than thou fight against him, lest in sooth Aegialeia, the daughter of Adrastus, passing wise, wake from sleep with her long lamentings all her household, as she wails for her wedded husband, the best man of the Achaeans, even she,