According to Greek legend, Achilles and Diomedes were prominent heroes of the Trojan War. Homer's epic poem The Iliad casts Achilles in a central role as the greatest and most beautiful of Greek warriors, ultimately ensuring Troy's doom by killing its chief protector Hector.
Diomedes plays an equally vital if less flashy role in Homer's epic, helping Odysseus steal the sacred Trojan relic which made the city impregnable (See note to page 144), and managing to wound several of the immortal gods who supported Troy in the conflict.
Online edition of the 'Iliad', circa 8th-century BC, as translated by Samuel Butler, (1898)
Account of the Palladium's origins in 1st-century BC 'bible' of myth the 'Bibliotecha', as translated and annotated by J.G. Frazer, (1921)