Lolth is the chaotic evil god of shadow, lies, and spiders. Scheming and treachery are her commands, and her priests are a constant force of disruption in the otherwise stable society of the evil drow. Though she is properly a god and not a demon, she is called Demon Queen of Spiders. She demands that her followers:
Do whatever it takes to gain and hold power.
Rely on stealth and slander in preference to outright confrontation.
Seek the death of elves and eladrin at every opportunity.