explantion: hishirama wife was an uzumaki and he had kids one of his kids gave birth to tsunade thus making her grandma an uzumaki naruto is also half uzumaki so thus they are related jus not through minato..
Haha that made me cry a bit.Did you know that Madara and Sasuke are related? Shocker, right?
Oh gee... I wonder why the manga is called "Naruto" then... U_UNoone cares about Naruto..