Point One:All The Persons With "D." In The Middle Of Thier Names Are From The Same Family.
Proof:In Robin`s Flashback Saulo Told Robin That.
Point Two:Saulo Is Luffy`s Grandpa ( Every Body Thought Roger Is )
Proof:Ao Kiji Said That He Fought Against Luffys Grandpa And In Robin
s Flashback He Fought Him.
If Anyone Wants The Proof In Pics. Just Tell Me ^^