Weird Sisters come in threes. The witches upon the heath, the bat-winged Furies, dog-head Harpies, swan-like Graeae and snake-haired Gorgons. These sisters are named Avenger, Jealous, Unresting (Furies), Dread, Horror, Alarm (Graeae), in short, everything and anything that frightens or disturbs; while the gorgan Medusa and her sisters Sthenno and Euryale, are so monstrously ugly that to look upon them is to be petrified.
And, yes, all these monsters are women.
I am, however, decidedly against moving Medusa and her sisters to the city full time. Psychologically, I don't believe wildernessess are places to avoid or to fear because they are where we exist undisguised, in all our uncertain vulnerability and individual truth. Perhaps in this series, the Belles will visit the outlands while the pariahs go to the ball... I'll keep you posted!
** James Hillman, Abandoning the Child, LOOSE ENDS, Spring Pubications, 1975