Adrastus

Adrastus, king of Argos, who assisted his son-in-law Polynices, and survived the war; Theb.
Chaucer's Works, Volume 1 (of 7) -- Romaunt of the Rose; Minor Poems|Geoffrey Chaucer
Later on the banished prince married Adrastus's daughter, and the king equipped a large army to go with Polynices to Thebes.
Stories of Old Greece and Rome|Emilie Kip Baker
Tydeus, Parthenopaeus, and Adrastus were three of the seven heroes who fought against Thebes.
The Aeneid of Virgil|Virgil
The first care of Adrastus was to aid Polynices in regaining possession of his lawful share in the government of Thebes.
Myths and Legends of Ancient Greece and Rome|E.M. Berens

Adrastus now gave his troops the word of command to storm the city, and they rushed forward to the attack with great valour.
Myths and Legends of Ancient Greece and Rome|E.M. Berens

British Dictionary definitions for Adrastus

Adrastus

/ (əˈdræstəs) /

noun

Greek myth a king of Argos and leader of the Seven against Thebes of whom he was the sole survivor

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