She was eventually killed in a duel by Molly Weasley after her attempted murder of Ginny Weasley. Before her death, Bellatrix secretly gave birth to an illegitimate daughter named Delphini, whom she conceived with her beloved master, Lord Voldemort.
Bellatrix clearly died for the same reason that Sirius did — she got cocky, let her guard down, and paid the price. As for how Mrs. Weasley managed to hold up against Bellatrix long enough to take advantage of Bellatrix's distraction, Bellatrix probably didn't take her seriously right from the start of the duel.
Bellatrix is an intensely violent, brutal, and cruel Witch who is motivated mainly by her own sadistic love to give suffering. She was fierce and dangerous, a trait which she shared with her cousin Sirius and aunt Walburga and which was probably the result of the inbreeding which prevailed in her biological family.
Bellatrix then started taunting Mrs Weasley over her son's death, proceeding to laugh at Molly's enraged response that the Death Eater "will never touch our children again!". This provided an opening for Molly to strike Bellatrix with a curse that hit her straight in the heart, killing her.
How Did Molly Weasley KILL Bellatrix? What Spell? - Harry Potter Theory
Why did Bellatrix not kill Hermione?
Bellatrix was torturing Hermione for information — specifically, how the three teens got their hands on the Sword of Gryffindor. Now, Bellatrix theoretically could have picked any of the three to torture, but it would be absolutely foolish to kill any of them before she got her information.
In the play "Harry Potter and the Cursed Child," which has become part of "Harry Potter" canon, it was revealed that Bellatrix conceived a child with none other than Lord Voldemort.
Originally Answered: What made Bellatrix Lestrange so cruel and sadist? I suspect that, as usual, it was a mixture of both nature and nurture. Bellatrix was born in the Black family, which had a history of instability and an insular approach to the outside.
Her disregard for human life and her pleasure in others' pain made her a deadly force. Bellatrix's devotion to Voldemort also means that she would have done anything to please him — no matter the cost. However, what fans most despise her for is the murder of her cousin, the beloved Sirius Black.
Who is Delphini raised by? After the deaths of her parents, Voldemort and Bellatrix Lestrange, Delphini is raised by Euphemia Rowle, who was not fond of her and allegedly only took her because she was offered a substantial amount of gold.
With Bellatrix it was completely different. Her usefulness died with her as well but he still tried to kill Molly in order to avenge her death while he was fighting his own battle with the best three duellists there. He screamed, his magic exploded, and he tried to kill Molly.
Molly's ability to cast non-verbal spells demonstrated her mastery of magic. Molly's love for her family and her determination to protect them gave her the strength to defeat Bellatrix Lestrange in a duel.
Originally Answered: Did Bellatrix feel sorry for killing Sirius? Bellatrix isn't sad about killing Sirius. She taunts Harry about it. Far from showing remorse for killing Sirius, she next stalks her niece, Nymphadora Tonks.
Bellatrix aiming the killing curse at Ginny proved to be the final straw for a woman who had to endure so much since the return of Voldemort and his followers. It's because of this rage and hatred that the duel erupts with such potency.
Bellatrix held this knife to Hermione Granger's throat in the spring of 1998 in Malfoy Manor, after having tortured Hermione into unconsciousness, prompting Harry Potter and Ron Weasley to rush to her rescue once Dobby the house-elf freed them from the dungeons below.
Delphi was conceived from a liaison between Lord Voldemort and Bellatrix Lestrange. She was born in March of 1998 at Malfoy Manor, shortly before the Battle of Hogwarts.
Mason Riddle is the Son of Tom Marvalo Riddle, otherwise known as Lord Voldemort, and the only American student at Hogwarts School of Witchcraft and Wizardry.
Family. Snape's family background is mostly shown in flashbacks during the course of the last three novels. Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince").
Lord Voldemort had no wife he and Bellatrix just made a baby together. Voldemort couldn't love anyone. But the girl mother (In cursed child) is Bellatrix Leatrange.
Delphini Riddle, often going by Delphi, was destined to be one of the most powerful witches in existence. Being one of the last descendants of Salazar Slytherin, she had the ability to speak parseltongue, a skill that few witches or wizards possess throughout the Harry Potter series.
Harry Potter and the Cursed Child unearthed many revelations but none were as shocking as the introduction of Lord Voldemort's daughter, Delphini. The young Dark witch, nicknamed Delphi, was the product of Voldemort's romantic relationship with Bellatrix Lestrange.
