Diomedes

Diomedes is a figure in Greek mythology. He fought at the side of the Greeks during the Trojan war. He was one of the favorites of Athena. He was able to wound two Olympians in a single day: Aphrodite when she was rescuing Aeneas; and Ares assisted by Athena. He was one of the best Greek heroes at that war besides Achilles, Ajax, and Odysseus. He led the Argive troops in that war as King of Argos and was one of the many warriors to sneak into Troy in the Trojan Horse.

His weapon during the war was his father's sword, and he also had a golden cuirass (a piece of armor that protects the torso) that was blessed by Athena.

His parents are Tydeus and Deipyle, and Herakles, the greatest of all Greek heroes, is his uncle.

The Battle of the Labyrinth
In The Battle of the Labyrinth, Diomedes is mentioned by Eurytion and Geryon.