rocks d. xebec

A character from the backstory of the manga and anime One Piece. He was not only powerful enough to win the allegiance of mighty pirates such as Whitebeard, Big Mom, Kaidou and others, he even took on the World Government itself, including invading the Room of Flowers (where Imu, the secret ruler of the One Piece world, resides).
He is the father of Blackbeard.