quest about el patron

The three that you chose one from are Nautilus Blade (Cutlass), Spinecrest (Broadsword) and Bitter End (Sabre). You only get one, even if (when) two El Patron's spawn, and only get the choice if it is for your quest. You can loot the others (or more copies of the one you picked) at Ravens Cove or Isla Tormenta after the quest so you might want to pick the one you want more for now. Like if you have level 20 sword, you might as well pick Spinecrest since it request level 21 sword, and you can use it quicker while leveling at RC and Tormenta where you may get lucky and get other cursed famed.