People are so very interesting.
I've recently read a LJ discussion in which a part of the Russian HP fandom discovers Mitford sisters as a possible inspiration for Bellatrix, Narcissa and Andromeda Black in HP. ... of course, the initial post looks as there were only three Mitfords, Unity, Diana and Decca. A comment in the discussion: "Their daddy obviously raised them wrong - none had a normal personal life. Hitler, married lovers..."