Dream no more.
Ok I don't know the full story of Hollow Knight, I'm currently playing it, so don't spoil it for me. But what I'm getting from this is that the Knight you play is one of a dozen dark knights whose purpose is to finish off Hallownest. Hornet however has made it her duty to find these knights and kill them off. At the moment, it seems that you're the only remaining knight. You aren't like the others, because you respawn.
Without spoiling anything, no, that's not the case. But you're right about the fact that the knight is not one of a kind.
holow knight lost his body and this is not big surprise
Btw, that's still sad.
Ahh that ending made me feel sad for him... But I guess it was for the best. Gorgeous