Boa Hancock

Boa Hancock, the captain of the Kuja Pirates and the Empress of Amazon Lily, has a complex history in the One Piece series. She was once a slave of the Celestial Dragons during her childhood, alongside her two sisters, Boa Sandersonia and Boa Marigold. The Celestial Dragons are a group of elites who view themselves as superior to others and have oppressed the general population for centuries. They demanded people to grovel in their presence and executed those who disturbed them, as seen when an injured patient was executed for disturbing a Celestial Dragon's walk.

Hancock and her sisters were force-fed Devil Fruits and branded as slaves. They were freed by Fisher Tiger, a revolutionary who fought against the World Government. After their liberation, the sisters returned to their people, and Hancock became the ruler of Amazon Lily, known as the "Snake Princess" to her subjects.

She quickly gained infamy as the "Pirate Empress" and was offered membership in the Seven Warlords of the Sea, a position she held until her resignation.