(Πάτροκλος), an officer in the service of Ptolemyi Philadelphus, who comlmanlded the fleet sent by that monarch to the assistance of the Atilenians against Antigonus Gonatas (B. C. 366). He appears to have been unable to make himself master of any of the ports of Athens, and established hli naval station at a small island near the promontory of Siiuniu, which ever after bore his name. (Paus. 1.1.1, 35.1; Strab. ix. p.398.) He urged Areus, king of Sparta, to make a diversion by attacking Antigonus oil the lind side, and it was probably ol the failure of this attempt that he withdrew from the coast of Attica. We subsequently find him commianlding the fleet of Ptolemy on the coast of Caria. (Paus. 3.6.4-6; Athen. 14.621 a.; Droysen, Hellenism. vol. ii. pp. 211, 219, 245.)