Poseidon
From Tomb Raider Wiki
Posidon's Room in Anniversary
Poseidon was one of the Twelve Olympians of Ancient Greek mythology. God of the sea and storms, he was the brother of Zeus and Hades.
Poseidon figures a lot in Greek myth, being one of the main antagonists of Odyseuss in the Odyssey and supporting the Trojans in the Iliad. He created storms so that the hero could not find his way home to Ithaca and his son, the cyclops Polythemus, tried to eat Odyseuss and his crew before Odyseuss blinded him with a sharpened stake.
Poseidon was translated into the god Neptune in Roman mythology, and this was the name of one of the rooms in St Francis' Folly in the original Tomb Raider. In the remake, Anniversary, Poseidon was re-instated, to be in keeping with the Greek theme.