Sanctuary of Apollo Patroos
From Project Athinai
A sanctuary dedicated to Apollo Patroos existed on the Agora since around 550 BC. Remains of a temple and statue were discovered during the excavations on the south of the Stoa of Zeus Eleutherios, on the east of the Synedrion (the benches on the Kolonos Agoraios). This sanctuary was destroyed by the Persians in 480 BC.
During our period of reference (421 BC), the ruins of the sanctuary were probably left untouched to remind the Athenians of the sacrilege committed by the Persians. However, an altar dedicated to Apollo Patroos had probably been restored or erected for the cult.
A new temple was erected around 330 BC. Around the same date, Euphranor sculpted an overlife-size statue of Apollo Patroos playing the cithar.
American School of Classical Studies at Athens; The Athenian Agora: A Guide to the Excavation and Museum, 1990
Travlos, John, Pictorial dictionary of Ancient Athens, Books that matter, New York, 1971, p. 96