"through the Tyrrhenian"

The Tyrrhenian is the sea off the west coast of Italy.  Avila is a city in central Spain, famous for its medieval city walls.  The Aegean is the sea between Greece and Turkey; the Aegean islands mostly belong to Greece although a few are Turkish.

Map of the Mediterranean showing Avila, Terrhenian and Aegean Seas
Creative Commons Attribution Share AlikeMap of the Mediterranean showing Avila, Tyrrhenian and Aegean Seas - Credit: Original work by Mapmaster, adapted work by Kat Matfield