Peisander was a Sparta

Sparta

Sparta or Lacedaemon, was a prominent city-state in ancient Greece, situated on the banks of the River Eurotas in Laconia, in south-eastern Peloponnese. It emerged as a political entity around the 10th century BC, when the invading Dorians subjugated the local, non-Dorian population. From c...

n general during the Corinthian War

Corinthian War

The Corinthian War was an ancient Greek conflict lasting from 395 BC until 387 BC, pitting Sparta against a coalition of four allied states; Thebes, Athens, Corinth, and Argos; which were initially backed by Persia. The immediate cause of the war was a local conflict in northwest Greece in which...

. In 395 BC, he was placed in command of the Spartan fleet in the Aegean

Aegean Sea

The Aegean Sea[p] is an elongated embayment of the Mediterranean Sea located between the southern Balkan and Anatolian peninsulas, i.e., between the mainlands of Greece and Turkey. In the north, it is connected to the Marmara Sea and Black Sea by the Dardanelles and Bosporus...

 by his half-brother, the king Agesilaus II

Agesilaus II

Agesilaus II, or Agesilaos II was a king of Sparta, of the Eurypontid dynasty, ruling from approximately 400 BC to 360 BC, during most of which time he was, in Plutarch's words, "as good as thought commander and king of all Greece," and was for the whole of it greatly identified with his...

. Peisander was a relatively inexperienced general, and in the first action his fleet saw, at the Battle of Cnidus

Battle of Cnidus

The Battle of Cnidus , was a joint Athenian and Persian operation against the Spartan naval fleet in the Corinthian War. A combined Athenian-Persian fleet, led by the former Greek admiral Conon, destroyed the Spartan fleet led by the inexperienced Peisander, ending Sparta's brief bid for naval...

, the Spartan fleet was decisively defeated. Peisander died fighting aboard his ship.