Bartholomew led a very powerful band of sky pirates.
Bartholomew Blackdagger and his sky pirates once tried to capture Garrundar but they failed spectacularly and the black dragon pursued them back to their hideout. Garrundar took control of the lizardfolk that lived there and he weaved a powerful spell that cursed the pirates into undeath and bound them. In 1484 DR, Company Yargo, needing a base and more sky ships, sent an adventurer to clear out the area. The adventurer killed Bartholomew before coming to the dragon.
- Bartholomew Blackdagger article at the Neverwinter Wiki, a wiki for the Dungeons and Dragons: Neverwinter MMORPG.