And the hero's probably descended from the main character. Along quite possibly with several other cousins of his.
It was contemplating how it contained bad parents, getting lost in the forest, and the administering of justice that lead me to introduce it. Because it echoes the themes of the main plot.
This can be important in a plot, to have subplots -- or backstory -- that do not just crank up the action without interacting with the main story -- in a different way. Different enough to keep the readers awake and not diagnosing it as repetition.