Re: Świnoujście – Veneti (Wolin).

en.wikipedia.org/wiki/Vistula_Veneti

„Based on the above sources, the Veneti in antiquity were geographically contiguous to and coterminous with the various early Germanic peoples.

It is also clear that the Franks (see, e.g., Life of Saint Martinus, Fredegar’s Chronicle, Gregory of Tours), Lombards (see, e.g., Paul the Deacon), and Anglo-Saxons (see Widsith’s Song) referred to Slavs both in the Elbe-Saal region and in Pomerania generally, as Wenden or Winden (see Wends). Likewise, the Franks and Bavarians of Styria and Carinthia referred to their Slavic neighbours as Windische.”