I clearly recall Jason (of the Golden Fleece) sailing a ship called Argosy and his crew were called Argonauts.

Close, but Jason's ship was called the Argo (Αργω, Argō). It was named after its builder, Argus (Αργος, Argos).

The city of Ragusa is today called Dubrovnik.

Ceci n'est pas un seing.