Bravary?

The knight lifted his sword
for once in his life
mercey struck his cold heart, he stood looking down at this man
theived of his living
a son, a daughter, a wife
were now eternally painted with grief
he lowered his shielded head
and he hung it ever so low
brave?
shivallry at its best?
slaughtered, murdered, killed
many men with family
slowly he turned his sword on himself
he'd show them brave
chain link did not protect him
from his dreadful fate
he hoped his grave to be marked unknown
to hide his sinful shame