Board Thread:Naruto Discussions/@comment-12509038-20140830021423/@comment-24531362-20140910061839

Avatar Silver wrote:

And how do you suppose Kushina was going to seal Kurama within her in her current state? and even though he married an Uzumaki, Minato's sealing abilities (besides the reaper death seal) wasnt as advanced as hers. And honestly, just by looking at Naruto, how could you not know he's the 4th hokage's son. The 3rd knew this and probably told most of the other villagers, but hatred is an extremely powerful emotion, so the older villagers who actually seen the 4th probably chose not to care. Also, why / how else would a random baby appear just when Minato needed to seal it if it wasnt his. the people didnt / wouldnt care for Naruto if Minato had been around slightly longer than they did him not being around at all.

No one really knew that Naruto was Minato and Kushina's kid, because the 3rd chose to hide that fact for Naruto's sake. People guessed, but the only one who nknew for certain were Hiruzen, Jiraiya, and Kakashi (in the anime)