Hermione Granger and Ron Weasley destroy the Hufflepuff's cup Horcrux inside the Chamber of Secrets—Hermione giving it the fatal blow with a basilisk fang. In the Harry Potter and the Deathly Hallows book, Vincent Crabbe inadvertently destroys Rowena Ravenclaw's diadem in the Room of Requirement via Fiendfyre.
Bizarrely, the diadem was accidentally destroyed by the son of a Death Eater. Vincent Crabbe unleashed the powerful Fiendfyre Curse, which quickly blazed out of control – destroying both the diadem and Crabbe himself. Gregory Goyle and Draco escaped thanks to Harry, Ron and Hermione.
Ron Destroys the Locket - Harry Potter and the Deathly Hallows Part 1 [HD] - YouTube.
Nagini is the last horcrux that Voldemort created and the last one to be destroyed. During the final battle of Hogwarts, Neville pulls the sword of Godric Gryffindor from the Sorting Hat and beheads Nagini, destroying the last horcrux.
Neville played a significant part in the two final books and the fight against Lord Voldemort, destroying the final Horcrux, Nagini, with the Sword of Gryffindor.
The Locket
Of all of Lord Voldemort's Horcruxes, Salazar Slytherin's old locket is the most difficult to obtain and destroy. In the Half Blood Prince, Harry Potter and Albus Dumbledore travel to an old cave where the Dark Lord would torture victims during his time as a teenager.
28, 1997: Ron Weasley destroys Salazar Slytherin's locket deep in the Forest of Dean, Gloucestershire, by stabbing it with Godric Gryffindor's sword.
Harry makes use of two of the Unforgivable Curses in the books. Dueling with Bellatrix Lestrange, he attempts the Cruciatus curse, with limited results; Bellatrix says that he has to really hate someone to make the Unforgivable Curses work properly, righteous indignation isn't enough.
Quirrell is, in effect, turned into a temporary Horcrux by Voldemort. He is greatly depleted by the physical strain of fighting the far stronger, evil soul inside him.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
Nagini was Lord Voldemort's final Horcrux
In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux. After Voldemort discovered his Horcruxes were in danger, Nagini was magically protected, described as being encased in a 'starry, translucent sphere'.
The cup, which was made a Horcrux with Hepzibah's death, was left with Bellatrix Lestrange who kept it at Gringotts. Griphook and an Imperiused Bogrod helped Harry, Ron and Hermione break into Bellatrix's vault and recover the Horcrux. The cup was destroyed by Hermione Granger, using a fang from the Basilisk's corpse.
Riddle ultimately changed his name, by way of an anagram, from "Tom Marvolo Riddle" to "I am Lord Voldemort", as a way of removing his own heritage and of exalting himself, and he killed the Riddle family, partly because they were Muggles, and partly because they abandoned him and his mother.
Born Helena Ravenclaw, she was a witch and daughter of one of Hogwarts' founders, Rowena Ravenclaw. Helena turned into the ghost known as the Grey Lady after she was brutally murdered by the Bloody Baron.
The cup was passed down through the Hufflepuff family, and through the centuries made its way to Hepzibah Smith, a descendant who kept the cup as a priceless heirloom. In 1946, Smith showed the cup to Tom Marvolo Riddle, who was at that time employed at Borgin and Burkes.
Family: Wizard Husband - Lord Thomas Ravenclaw. Son - Edmund Ravenclaw (10)
Mad-Eye Moody is a Hufflepuff.
At the time Harry touched him, Quirrell was sharing a body with Voldemort. Since the magical blood protection Harry had prevented Voldemort from touching him, Quirrell would suffer pain. He would ultimately be destroyed from touching Harry.
She was sorted into Slytherin House at Hogwarts School of Witchcraft and Wizardry and hated her time at the school due to never being given any positions of power. After her time at Hogwarts, Umbridge rose to prominent and influential positions in the Ministry of Magic in the Improper Use of Magic Office.
The Killing Curse was created in the early Middle Ages by Dark witches and wizards. Primarily, the curse was used to quickly slay opponents during a duel. In 1707, the Wizards' Council was restructured into the Ministry of Magic, which allowed for more strict restrictions on certain types of magic.
Cruciatus Curse ('Crucio')
Harry tried to use this spell himself. The first time was against Bellatrix after she had killed Sirius. His attempt was unsuccessful because, as Bellatrix mockingly explained: 'You need to really want to cause pain – to enjoy it – righteous anger won't hurt me for long…'
So Umbridge acquires the locket as a bribe from Mundungus Fletcher, and though it once belonged to Salazar Slytherin, Merope Gaunt, and Hepzibah Smith, Umbridge is unaware that the locket is one of Lord Vodemort's Horcruxes - or that it belonged to him at all.
Regulus Black is the brother of Sirius Black. He is also a former Death Eater, although he defied Voldemort and found, and intended to destroy, Salazar Slytherin's locket (a horcrux) and died when dragged into the lake and drowned by Voldemort's inferi.
I know I will be dead long before you read this but I want you to know that it was I who discovered your secret. I have stolen the real Horcrux and intend to destroy it as soon as I can. I face death in the hope that when you meet your match, you will be mortal once more.