The Greeks believed that Hephaestus lived on Olympus with the other gods. He was, after all, one of the 12 Olympians.
To the Greek colonists in Sicily and, later, to the Romans, he lived under the volcano, Mt. Aetna, at that point colluded with the Roman god, Vulcan.
There is no Greek god named Heidi.
In the sun.
Mount Olympus.
Hades
Poseidon was the God who ruled over the oceans, therefore, he resided in the ocean.
it was Hepaestus-
Hephaestus was the god of weapons. Hepaestus was the Greek god. The Roman one was Vulcan. Vulcan was a god of weapons indirectly. He was the god of fire and of blacksmiths. In the mythology he crafted weapons for gods and heroes with his helpers. He was the god of the blacksmiths who made weapons, rather than directly a god of weapons.
There is no Greek god named Heidi.
In the sun.
Ares does not live in Egypt, he is a Greek god and dwells on Mt. Olympus in Greek myth.
In his ocean palace.
Mount Olympus.
Hephaestus, or Ἥφαιστος, son of Zues and Hera, is the Greek god of fire and patron of metalworkers and stonemasons. According to myth, Hepaestus was blacksmith and weapon-maker to gods that was cast from Olympus; and was the only exiled god allowed to return. He was also known for having a lame foot. In ancient Roman mythology, he was named Vulcan.
Paris is a mortal, not a god. He lives in Troy however
In his palace in the bottem of the ocean.
He never died.
Hades