game of thrones questions...

[di_elle]

probably only stefichan can answer me and probably there will be spoilers in the comments.

So I was re-watching episode two... and
listening Cersei's description of the baby who died (killed?) and how he was just like his father... then we see all the little princes are blonds... those are his brother's children, not the king's, is that right???

also, is the raven symbolic as the direwolves and dragons are?