Molly Weasley killed her after Bellatrix was dueling Luna, Hermione, and Ginny together, and she shot a killing curse to Ginny but missed and aggravated by the death of Fred she doesn't want her ONLY daughter dead so she shot a curse that hit Bellatrix on the chest.
Dobby died in Harry Potter and the Deathly Hallows.
Arthur Weasley didn't kill anybody throughout the series. His wife, Molly Weasley, killed Bellatrix Lestrange.
Bellatrix Lestrange's maiden name is Black. If you are talking about who potrayed her in the movies, her name is Helena Bonham Carter.
A silver knife, thrown by Bellatrix.
Bellatrix Lestrange was a Death Eater from the Harry Potter book series. Bellatrix was wife to Rodolphus Lestrange, but actually loved Voldemort. She was the aunt of Draco Malfoy. Bellatrix spent many years in the prison, Azkaban, for her crimes associated with Voldemort's first reign of terror. This included torturing Frank and Alice Longbottom into insanity. She was involved in a mass escape during Voldemort's second rise. During her time of freedom, she was responsible for three known murders. Her victims were Sirius Black, Dobby the house elf, and Nymphadora Tonks. During the final battle at Hogwarts, Bellatrix was killed in a duel by Molly Weasley.
Bellatrix Lestrange. She is the sister of Draco Malfoy's mum. Bellatrix is evil I hate her.
No, Dobby does not return. He gets killed by Bellatrix Lestrange in the Deathly Hallows.
In "Harry Potter and the Deathly Hallows," Dobby the house-elf is killed by Bellatrix Lestrange. During the Battle of Malfoy Manor, Bellatrix throws a knife at Harry and his friends as they Disapparate, and Dobby is hit by the knife as he apparates them to safety. Dobby dies in Harry's arms shortly after, leading to a heartbreaking moment in the series.
Saves peoples' lifes then gets killed by Bellatrix Lestrange.
Dobby was killed when Bellatrix Lestrange threw her silver knife at him as he disapparated from Malfoy Manor. Harry buried him at Shell Cottage.
When Dobby helped Harry Potter and his friends escape from the Malfoy Manor. He died at Shell Cottage, due to Bellatrix Lestrange's knife going through his chest.
He got hit by a dagger thrown by Bellatrix Lestrange.
Dobby says " Dobby never meant to kill! Dobby only meant to maim, or seriously injure. "
Bellatrix Lestrange was the one who killed Sirius Black in the battle of the Death Eater's and the Order of the Phoenix in the Ministry of Magic.
He is alive during the first half. He is later killed / stabbed by bellatrix lestrange while saving harry.
bellatrix did you can read it in the 5th book
Dobby died in Harry Potter and the Deathly Hallows.