no, I think Orthros' mum, Echidne, was related to Heracles. I don't fully understand it either.
and yeah, Heracles was renamed Hercules in Roman mythology.
Chupon was supposed to be named Typhon, as well, wasn't he?
edit: wait, apparently *I* was confused. Yeah, apparently Heracles did have several children by Echidne as well. Odd. xD