Bellatrix was born in 1951 to Cygnus and Druella Black, who raised her to prize her pure-blood heritage. She was the eldest sister to Andromeda and Narcissa[1], though Bellatrix cut off contact with Andromeda when she (Andromeda) a married Muggle-born wizard Ted Tonks and was disowned, as she told Lord Voldemort in 1997 that neither she nor Narcissa had "set eyes on our sister since she married the Mudblood"[2]. Bellatrix also held her cousin Sirius Black in contempt for being a Gryffindor and a "blood traitor".
According to a popular fanfic, Sirius was the only person who had the nerve to call her "Trixy." This pet name annoyed her greatly.
Bellatrix came from the elite Black Family, and as such she was given a privileged lifestyle. Bellatrix attended Hogwarts School of Witchcraft and Wizardry and was sorted into the Slytherin House. She eventually married Rodolphus Lestrange — a fellow pure-blood, as was expected of her — and when Lord Voldemort first rose to power, she and her husband joined the Death Eaters. Unlike her sisters, Bellatrix displayed no outward affection for her husband whatsoever, never even mentioning him in conversation. Her true love was Voldemort, who gave her some training in the Dark Arts, which contributed to her incredible talent as a duelist.
According to a popular fanfic, Sirius was the only person who had the nerve to call her "Trixy." This pet name annoyed her greatly.
Bellatrix came from the elite Black Family, and as such she was given a privileged lifestyle. Bellatrix attended Hogwarts School of Witchcraft and Wizardry and was sorted into the Slytherin House. She eventually married Rodolphus Lestrange — a fellow pure-blood, as was expected of her — and when Lord Voldemort first rose to power, she and her husband joined the Death Eaters. Unlike her sisters, Bellatrix displayed no outward affection for her husband whatsoever, never even mentioning him in conversation. Her true love was Voldemort, who gave her some training in the Dark Arts, which contributed to her incredible talent as a duelist.