Heraclides ( grc-gre, Ἡρακλείδης), son of Argaeus was an admiral sent by Alexander, shortly before his death, to construct ships on the Caspian Sea, with a view to a voyage of discovery, similar to that of

Nearchus Nearchus or Nearchos ( el, Νέαρχος; – 300 BC) was one of the Greek officers, a navarch, in the army of Alexander the Great. He is known for his celebrated expeditionary voyage starting from the Indus River, through the Persian Gulf and e ...

. Whether the task was ever undertaken or completed is not known. Patrocles a general of

Seleucus I Seleucus I Nicator (; ; grc-gre, Σέλευκος Νικάτωρ , ) was a Macedonian Greek general who was an officer and successor ( ''diadochus'') of Alexander the Great. Seleucus was the founder of the eponymous Seleucid Empire. In the pow ...

is reported to have undertaken an exploration on the Caspian Sea.

References

*''Who's Who in the Age of Alexander the Great'' by Waldemar Heckel Ancient Macedonian admirals Admirals of Alexander the Great {{AncientGreece-bio-stub