Board Thread:Naruto Discussions/@comment-1512913-20160606161440/@comment-25389387-20160606175217

True, princesses are usually daughters of kings/queens but in The Last: Naruto the Movie, Toneri referred to Hinata as the "Byakugan Princess", as did the Otsutsuki Patriarch if I remember correctly. Perhaps within the Otsutsuki clan, their monarchial ranks only go up to Prince/Princess? (Speculation)