One piece of good fortune only was his, amid so many ills, and that was a son of surpassing excellence; but this son he killed, out of envy and jealousy of the honour paid him by the Romans, and left his kingdom to his other son, Perseus, who was not legitimate, as we are told, but supposititious, the child of a sempstress, Gnathaenion.
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1926. 11.
Remark :
long-term consequence: After Philip had died in 179 BC, Perseus became king of Macedon instead of Demetrius. motive: Demetrius was suspected of "highly treasonous dealings" with the Romans, see: https://referenceworks.brillonline.com/entries/brill-s-new-pauly/demetrius-e314200?s.num=0&s.f.s2_parent=s.f.book.brill-s-new-pauly&s.q=demetrius
