topographical map gives you a good idea of how the
Gulf of Naples is laid out. North to south runs from
the city of Naples on a line to the Isle of Capri in the lower right of
the map. The Gulf of Naples is contained within a
line running from Cape Miseno (in the center of the
map across from the small island of Procida)
to Point Campanella (across from Capri). The Gulf,
itself, is divided into the Bay of Pozzuoli and the
Bay of Naples, separated by the Posillipo peninsula.
The Bay of Pozzuoli was the important Roman military
port for the Western
Imperial Fleet. The original Greek settlement
in the area, Pithecusa,
was actually on the large island of Ischia (at the
bottom of the map). Well before the city of Parthenope—and, then, Naples—was founded, the Greeks moved from Ischia
across to the mainland at Cuma.
The entire area visible on the map, plus some area
further up the coast to the left towards Gaeta,
constituted what was known as the Independent Duchy
of Naples in the ninth and tenth centuries. Much of
the area, however, in the mountainous Sorrentine
Peninsula was disputed with other duchies of that
period, namely, the Duchy of Benevento and the Duchy of Salerno.