Bellatrix Lestrange — the main representative of the family in the franchise, who's played by Helena Bonham Carter — was actually born into the pureblood Black family, making her Sirius ...

Harry Potter fans are still debating the spell Molly Weasley used to kill Bellatrix Lestrange. Fans speculate Molly's motherly rage heightened a simple Stupefy spell targeting Bellatrix's heart.