Previous chapters of One Piece shed light on what truly occurred during King Cobra's meeting with the Five Elders. Sabo manages to sneak into the room and eavesdrop on the conversation between them. That's when the Revolutionary Army's second-in-command learns about the Alabastan king's query. King Cobra wants to know what actually happened to his ancestor -- Nefeltari Lily. It turns out that the queen has simply vanished after refusing to be part of the Celestial Dragons. Cobra also grabs that opportunity to reveal his true ancestry. He is not only a descendant of Nefeltari Lily but of Nefeltari D. Lily -- meaning he and his daughter Vivi also inherit the Will of D.
Source：https://www.cbr.com/one-piece-chapter-1087-recap-spoilers-battleship-bags/
