Patroclus
Πάτροκλος
The friend who borrowed Achilles' armor and died wearing it.
When the Greek line collapsed while Achilles sat out the fighting, he begged to borrow at least the armor.
The Trojans fell back, thinking Achilles had returned — but in the end Hector killed him.
His death sends Achilles back to the battlefield. The whole of the Iliad turns on this one man's death.
SourcesHomer, Iliad