Well if you want the answer according to Homer, in the Illiad, Ares joined the Trojans on the battlefield outside Troy. With Athena's help the Greek hero Diomedes killed Ares with a javelin. Ares immediately returns to Mount Olympus, and is forbidden to return to the battlefield by Zeus who admonishes him for his bloodthirstiness.
So the answer is Mount Olympus.
in a battel
Ares lived on Mount Olympus with the other Greek gods.
Greek god Ares is known for being the god of war, representing the violent and savage aspects of battle. He embodies the chaos, bloodlust, and brutal side of conflict, often associated with physical strength and courage in battle.
Ares, the god of war, is often romantically connected to Aphrodite, the goddess of love.
Ares is known for his association with war, violence, and courage. He embodies the qualities of strength, power, and aggression. Ares is also often viewed as impulsive and quick to anger.
in a battel
Ares lived on Mount Olympus with the other Greek gods.
ask percy jackson
You do know that she's not real, right? She can't have a "last known location" if she never existed.
She is a Greek goddess so her last location would be Ancient Greece.
hell
pooooop
The sea.
Supposedly in Greek myth, Ares lived upon Olympus.
He had no last known location because he was not real. Even if he were, he was a god, and thus, omnipresent.
Hera was a goddess and omnipresent. To assign a "last known location" implies that she had a physical form that could be attached to a single location. The Greeks did not see their gods this way.
y do you care