Zoilus II Soter (; epithet means "the Saviour") was an Indo-Greek king who ruled in eastern Punjab. Bopearachchi dates his reign to c. 55–35 BC, a date approximately supported by R. C. Senior. It is possible that some of his coins were issued by a separate king, Zoilus III. Rule Zoilus seems to have been one of the rulers who succeeded the last important Indo-Greek king Apollodotus II in the eastern parts of his former kingdom. All these kings use the same symbol as Apollodotus II, the fighting Pallas Athene introduced by Menander I, and usually also the same epithet Soter (Saviour). It is therefore possible that they belonged to the same dynasty, and Zoilus II could also have been related to the earlier king Zoilus I, but the lack of written sources make all such conjections uncertain. He may have been the Bactrian ally of Mark Antony and Cleopatra VII referred to by Virgil in his vision of the Battle of Actium in : Coinage Zoilus II issued silver drachms with diademed portrait and Pallas Athene in rather crude style, and two sorts of bronzes in various denominations: "Apollo, with tripod and small elephant", and "Elephant and tripod". Zoilus III, a separate king? The portraits attributed to Zoilus II could be divided into two groups; one depicting a balding man with hollow cheeks, the other a seemingly younger man with a fringe and round cheeks. As numismatic evidence indicates that the younger portraits are later, recent research has suggested that they be attributed to a younger king, Zoilus III Soter, who would then have been a son and successor of the older Zoilos. In particular, the mint mark which is characteristic of the coins of Zoilos with a full head of hair, is a later mint mark used down to the last Indo-Greek kings Strato II and Strato III, suggesting a later reign for Zoilus III. This mint-mark however was never used by the "balding" Zoilus II, or by any king before him. Indo-Scythian imitations The Indo-Scythian king Bhadayasa also copied coins of Zoilus II, or the hypothetical Zoilus III, only mentioning his own name on the Kharoshthi legend of his coins. Monograms Many of the monograms on the coins of Zoilus II are in Kharoshti, indicating that they were probably made by an Indian moneyer. This is a characteristic of several of the Indo-Greek kings of the eastern