Battle at Liang Dao's palace

"Fight, any pirate who stands with me&mdash;all of you who know that I should be Pirate Lord, not my brother. Not Liang Dao!" "Never! To me, loyal warriors!"

- Sao Feng and Liang Dao

The Battle at Liang Dao's palace was a battle between the two factions of Chinese pirates, one loyal to the Pirate Lord Liang Dao, and the other to his brother, Sao Feng. Feng also hed the help of the infamous pirate Jack Sparrow and his pirate crew. The battle ended with Liang Dao's defeat. He was stripped of his Piece of Eight, the sign of Pirate Lordship, by Sao Feng, who became the new Pirate Lord of Singapore and the South China Sea.

Source

 * Pirates of the Caribbean: Legends of the Brethren Court: Rising in the East