Seleucus VII Kybiosaktes

Seleucus VII Philometor (Greek: Σέλευκος Ζ΄), was a ruler of the Macedonian Seleucid kingdom. The last members of the once mighty Seleucid dynasty are shadowy figures; local dynasts with complicated family ties whose identities are hard to ascertain: many of them also bore the same names. Seleucus was unknown until recently: from coins issued by him and his mother, Ptolemaic princess Cleopatra Selene, it is presumed that he was her son by king Antiochus X Eusebes, and a brother of later king Antiochus XIII Asiaticus. He appears to have "reigned" during the occupation of Syria by Armenian king Tigranes (83-69 BC). In reality, only a few cities were loyal to the Seleucids during this period.

The young boy-king is probably the same Seleucus who later went to marry a Ptolemaic princess called Berenice IV (a sister of the famous Cleopatra VII of Egypt) but allegedly was murdered by the discontented bride for his lack of manners. He bore the derogatory name Kybiosaktes, the term for the foul-smelling work of cutting tuna fish.

Source :

https://en.wikipedia.org/wiki/Seleucus_VII_Kybiosaktes