Queen’s Bounty at 1.32 billion Berries

Before he was Queen he was Scien, and at seventeen he joined MADS, Vegapunk's laboratory, where he, Vinsmoke Judge and Caesar Clown built weapons while their director invented things meant for peace. The Lineage Factor was discovered there, which is also why the World Government eventually dissolved the team: it found them threatening. Scien had already resigned by then. He has sailed under Kaidou for at least twenty years since.

The number covers both lives. Queen rebuilt his own body, a mechanical arm, lasers, grappling claws, rocket launchers, a beam cannon set in the mouth of his brachiosaurus form, while claiming Vegapunk himself could never reproduce him, and he grafted onto himself copies of the abilities Judge gave his modified children, an old laboratory argument over which of the two was the second-best scientist in the room.

The rest is governor's work: the Udon region and its Prisoner Mine, where he tortured Eustass Kid to break Luffy's spirit. And Ice Oni. With no SMILE fruits arriving after Doflamingo's fall, Queen engineered a virus that turns his own low-ranking men into ice demons, stronger, mindless and dead within the hour. He set it loose on the Live Floor to flush out X Drake, then tossed the only antibody sample to Scratchmen Apoo, making him the quarry of everyone infected; Chopper cured every victim, and Queen tried to shoot him for it.

Sanji tore the mechanical arm off him, then kicked him out of Onigashima with Ifrit Jambe. A week later, Admiral Ryokugyu came to collect him from his own mine.