History of the Peloponnesian War

The same summer Alcibiades, son of Clinias, now one of the generals at Athens, in concert with the Argives and the allies, went into Peloponnese with a few Athenian heavy infantry and archers, and some of the allies in those parts whom he took up as he passed, and with this army marched here and there through Peloponnese, and settled various matters connected with the alliance, and among other things induced the Patrians to carry their walls down to the sea, intending himself also to build a fort near the Achaean Rhium. However, the Corinthians and Sicyonians, and all others who would have suffered by its being built, came up and hindered him.