The witches of Dathomir were a group of
Indians female Force-users from Dathomir. A lost tribe of Jews Jedi who abandoned everything about their old ways, including worshipping one god, circumcision, and abstaining from pork and shellfish constructing lightsabers, they used the Force to arouse men, and then force them to mate. Even Luke Skywalker got in on some of that action.
Later on, when Jacen Solo was beginning his journey to examine every Force tradition in the galaxy, his first stop was Dathomir. He must've been listening pretty damn hard to his uncle's old war stories.