Lady of Pain

The Lady of Pain is a fictional entity, the ruler of the city of Sigil in the Dungeons & Dragons Planescape campaign setting. She is also known as Her Serenity, for the permanently vacant expression on her face, or simply The Lady.

The Lady is sometimes seen as a floating, robed woman with a mantle of blades around her expressionless face. She does not concern herself with the laws of the city, and typically interferes only when something threatens the stability of Sigil itself.

The Lady is an entity of inscrutable motives, and often those who cross her path, even if accidentally, are flayed to death or teleported to one of her hidden Mazes (being inescapable pocket universes, usually endless and twisted in on themselves). Rumor has it that even minor deities have fallen before the Lady. It is therefore no surprise that the vast majority of Sigil's denizens dread her visitations, and some even avoid mentioning her name aloud for fear of drawing her attention.

For all her power, she apparently refuses to be regarded as a goddess, and anyone brave (or careless) enough to worship her has met a grisly demise in the shadow of her blades.