This poem is from the proverbial distichs of Georgius Carolides (1569-1612), which you can read online at the University of Mannheim. One of those notorious "sons of the heroes" was Neoptolemus, the son of Achilles. You can read about Neoptolemus and his bloodthirsty exploits here.
Heroum Filii Noxae
Heroum claro fiunt de sanguine noxae,
Quod vel amor nimius, vel mala cura facit.
The vocabulary is keyed to the DCC Latin Vocabulary list. There is only one word in this poem that is not on the DCC list:
hēros (hēris, m.): hero
noxa (noxae, f.): harm, crime, criminal
amor -ōris m.: love
clārus -a -um: clear, distinguished
cūra -ae f.: care, concern
faciō facere fēcī factum: do, make
filia -ae f.; filius -ī m.: daughter; son
fīō fierī factus sum: become
malus -a -um: bad, evil; male: (adv.) badly
nimius -a -um: too much, excessive; nimis or nimium: excessively
qui quae quod: who, which, what / quis quid: who? what? which?
sanguis -inis m.: blood
vel: or else, or; even; vel . . . vel: either… or
