http://agathe.gr/guide/temple_of_apollo_patroos.html
Temple of Apollo Patroos Next to the Stoa of Zeus at the south are the remains of a small temple of Apollo Patroos (Fatherly), so-called because he was the father of Ion, founder of the Ionian Greeks, ... In front of the temple one Apollo was made by Leochares, the other -- whom they call Alexikakos (averter of evil) -- by Kalamis. They say the god received this name because by an oracle from Delphi he stopped the plague which was afflicting them at the same time as the Peloponnesian War."