I know JRK did not put as much thought into this, or any at all, but I’m about 85% sure I’ve plotted Bellatrix’s astrological birth chart. Using her wand wood, which JKR uses for Bdays, Walnut is associated with late April or late October/early November.

The variable of her sun sign, as anyone’s sun sign, means very little, but it’s a starting point. She’s either a Taurus (if so, born near Beltane...there’s witchy irony here) or a Scorpio.

I’m leaning towards Scorpio because we don’t have a time of birth and that’s very important in your rising sign; how you present yourself. If she is a Scorpio, she’d likely have a sextile with her Sun and Mars-natural warrior energy right there.

Astrology uses 12pm when you don’t know time of birth, but oddly enough plotting her at the end of April or near beginning of November still give you a north node in Pisces, life’s purpose/direction.

Dates of birth considering: November 2nd, November 11th, and April 30th. Location: England (where does not matter). Time 12:00pm neutral time. Rising: likely Aries.

Any other astrologers want to chime in?

I’m also low key working on Narcissa’s, which is hard without a wood (some speculation she also had Elm so I’m using that as a start.)

*also look at everything that’s below her “rising sign” line. Someone is keeping a LOT below the surface*