So became subject to the two duchies the entire Adriatic coast between Byzantine strongholds of Ancona in the north and Otranto in the south; the Ionian and the Tyrrhenian, however, only partially fell under the authority of the duke of Benevento, which was never able to permanently occupy Naples, the Salento and the tip of Calabria (south of Cosenza and Crotone), and of course, Rome and its suburbs.
Tyrrhenians, an ancient ethnonym associated variously with Pelasgians, Etruscans or Lemnians
Tyrsenian (Tyrsenisch, also Tyrrhenian), named after the Tyrrhenians (Ancient Greek: Tursānoi, Tursēnoi, Turrhēnoi), is an extinct family of closely related ancient languages proposed by Helmut Rix (1998), that consists of the Etruscan language of central Italy, the Raetic language of the Alps, and the Lemnian language of the Aegean Sea.