As explained by Duke at the Tavern, he talks about Flameheart's loyal crew, the Ashen Lords. Each one that held a particular position in his army.
Captain Grimm - A sly one who constructed lairs and fortresses to hold all the treasure they stole.
Red Ruth - An alchemist responsible for designing weapons, including cursed cannonballs for the Burning Blade.
Old Horatio - A nasty piece of work, so they say, in charge of constructing ships and press ganging skellies to crew 'em!
Warden Chi - She ran the prison where they threw anyone that Flameheart wanted kept alive. Well, barely alive...
These skeletons so far have returned to be his pawns in the Sea of Thieves, as for Stitcher Jim, he may have turned undead like Wanda the Warsmith and joined ranks as an Ashen Lord as well.
