In Greek mythology, a son of King Priam of Troy who was killed by Achilles (6)
I believe the answer is:
hector
(Other definitions for hector that I've seen before include "Browbeat; Trojan hero" , "Browbeat, boss around" , "Annoy like a Trojan hero" , "Trojan prince killed by Achilles in siege of Troy" , "Bully, intimidate or threaten" .)