The Trojans, whose city he [Heracles] had once destroyed because of the wrong done him by Laomedon their king.
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1916. 3.
Remark :
motive: Vengeance
Notes :
Plutarch cites other authors here; the event itself is not historical but mythical.