Le Postillon

The black ship sailing is Le postillon

Le Postillon was a ship, captained by Olivier Levasseur in the seventeenth century.

Using this ship, Levasseur rescued Alonzo Batilla and Jumao, before giving them a ship

Levasseur plundered many ships on Le Postillon, which was most easily recognized by its masts, which were black in color.

Reference

• Assassin's Creed: Pirates