200px-El Patron

El Patron is a Level 40 boss in POTCO, he is the 4th most powerful boss in the game. That stays on the lost ship, on Raven's Cove he can only be fought on the last part of the Raven's Cove quest. After the player with the quest defeats him you may pick one of 3 Famed Cursed blades to use as your starting weapon on your journey to find more cursed blades.

Below is the 3 weapons you may choose from El Patron's Chest.

268px-El Patron Skull Chest Inside

Credit to POTCO Wiki.