From A Wiki of Ice and Fire
Black Pearl of Braavos is a traditional title or name born by a descendant of Bellegere Otherys, a pirate queen that became a mistress of Aegon IV Targaryen. Since the eldest daughter of Aegon IV and Bellegere, Bellenora Otherys became a courtesan under the same name, her descendants have become courtesans as well, each bearing the name of the Black Pearl.
Known Black Pearls (chronological order)
- Bellegere Otherys, the first Black Pearl, pirate, smuggler, and mistress of Aegon the Unworthy
- Bellenora Otherys, the second Black Pearl, courtesan
- Bellonara Otherys, the previous Black Pearl, also a courtesan
- Bellegere Otherys, the current Black Pearl, also a courtesan, mocked as "the Brown Pearl" by "Mercy"