Answer
The Macedonian king Alexander the Great and his friend Hephaestion were compared to Achilles and Patroclus in their relationship. Achilles was the greatest warrior of the Greeks in the Trojan War, and Patroclus was his close friend who was killed by Hector, the greatest warrior of the Trojans. Alexander and Hephaestion were both great warriors, and Hephaestion was killed in battle while fighting alongside Alexander.