User blog comment:Kaido King of the Beasts/Chapter 813: Up in Vinsmoke/@comment-5774380-20160121232334

The Vinsmoke family is very likely an insanely powerful mafia family with ties with the highest levels of the Government (could they have been the ones that ordered Moriah's murder? Not so likely but a random thought). I guess they made the poster be changed to "Only Alive" in order to capture Sanji, and the marriage with Big Mom's daughter is both for business reasons and to prevent Sanji from being killed by the Marines.

I also couldn't help but notice the nods to The Godfather in this story: the mafia theme, Vito (same name as Don Vito Corleone, the titular character of the movie), and The Godfather begins with the wedding of the daughter of the family...