ACHAIA PROPRIA, anciently a small district in the north of Peloponnesus, running westward along the bay of Corinth, and bounded on the west by the Ionian Sea, on the south by Elis and Arcadia, on the east by Sicyonia: inhabitants, the Achæans*, properly so called; its metropolis, Patra. It is now called Romania Alta, Achæans. * See
Achæia was also taken for all those countries that joined in the Achæan league, reduced by the Romans to a province. Likewise for Peloponnesus.