Antigonus himself was tarrying in Phrygia, and hearing there that Ptolemy had crossed over from Cyprus and was ravaging Syria and reducing or turning from their allegiance its cities, he sent against him his son Demetrius, who was only twenty-two years of age, and was then for the first time engaging with sole command in an expedition where great interests were at stake.
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1920. 9.
Remark :
long-term consequence: The interference of the third persons leads to the battle of Gaza in 312 B.C. This is mentioned later in the paragraph.