Ths is a Actual Pirate Flag  

Black and White

3 By 5 foot flag

The Brethren or Brethren of the Coast were a loose coalition of Pirates that were active in the seventeenth and eighteenth centuries.

 They Operated in the Atlantic Ocean , Caribbean Sea, and Gulf of Mexico. They mostly operated in two locations, the island of Tortuga off the coast of Haiti and in the city of Port Royal on the island of Jamaica