Mindarus

Mindarus was a Spartan admiral who commanded the Peloponnesian fleet in 411 and 410 BC, during the Peloponnesian War. Successful in shifting the theater of war into the Hellespont, he then experienced a string of defeats; in the third and final of these, he himself was killed and the entire Peloponnesian fleet was captured or destroyed.

Mindarus first took command of the fleet at Miletus, where the satrap Tissaphernes had promised the Spartans they would be joined by the sizable Phoenician fleet under his command. After several months of waiting, Mindarus realized that no such fleet would be forthcoming, and made the strategic decision to relocate his fleet to the Hellespont, where the satrap Pharnabazus had promised him greater support than he was receiving from Tissaphernes.

Mindarus set out from Miletus with 73 ships; a storm forced him ashore at Chios, but he remained there only a few days. Sailing with haste to avoid an Athenian fleet that had been brought up from Samos to oppose him, he succeeded in bringing his fleet between Lesbos and the mainland and into the Hellespont, where he brushed aside a small Athenian fleet and joined the few allied ships in the region in the Spartan base at Abydos. With this strategic move, Mindarus had placed his fleet in position to cut off the Athenian grain supply, and had forced the Athenian fleet to challenge him on ground of his choosing.

From this point onwards, however, Mindarus' luck turned sour. Five days after his arrival at Abydos, the Athenians sailed into the narrow waters of the Hellespont to engage his numerically superior force. In the resulting battle, Peloponnesian victory appeared within grasp in the early going, as the Athenian left was cut off and the center driven ashore on the promontory of Cynossema; superior seamanship on the part of the Athenian captains and sailors, however, turned the tide of the battle, and Mindarus' fleet fled back to Abydos with losses.

...
Wikipedia