Ultimately, Dumbledore's death at Snape's hands was a win for everyone involved. The headmaster got the respectful death he wanted, Snape was able to prove his loyalty to the
Severus Snape killed Hogwarts Headmaster Albus Dumbledore because he had been asked to do so by Dumbledore himself. Dumbledore found out about Draco's task to kill him and so asked Snape to do it instead.
When Snape killed Dumbledore, he cast the Killing Curse, fueled by the words Avada Kedavra. Despite being unforgivable, Avada Kedavra provided the victim with a quick and painless death, meaning Snape actually ended Dumbledore's suffering.
Draco did not have it in him to kill Dumbledore. He was terribly afraid and unsure of what to do. Dumbledore knew this would happen and to save Draco's soul he had asked Snape to kill him instead.
It was Snape who overheard the prophecy that would go on to define Lord Voldemort and Harry Potter's lives for years afterwards. The prophecy can be seen as the catalyst for everything; it led to the death of Lily, his great love, and Snape spent the entire course of Harry's (and his own) life trying to make amends.
But, despite his maltreatment of Harry and the complicated killing of headmaster Dumbledore (who knew he was a double agent?), Snape did sacrifice his life for Harry at the Battle of Hogwarts.
Despite his attraction to the Dark Arts and Voldemort's ideology of wizard supremacy, Snape's love for Muggle-born Lily Evans, Harry's mother, eventually compelled him to defect from the Death Eaters.
Answer and Explanation: No, Hagrid does not die in Harry Potter and the Deathly Hallows. He survives the battle at Hogwarts, and he is later mentioned in Harry Potter and the Cursed Child, which takes place over 18 years after the battle.
Gaunt's ring
After retrieving the ring Albus Dumbledore himself fell victim to a curse that, even when contained, would likely have killed him within the year. Once rendered defunct as a Horcrux, the stone was placed inside a Golden Snitch and left to Harry Potter in Dumbledore's will.
Lucius Malfoy had a strong dislike of Albus Dumbledore. This is due to two reasons – Dumbledore believed in Muggle rights which contradicted Malfoy's pure blood beliefs. In addition, Lucius was a Death Eater, so he believed that Lord Voldemort was a much more powerful wizard than Dumbledore.
Later in the year, McGonagall duelled with Death Eater Alecto Carrow during the Battle in the Astronomy Tower and later learned of Snape's murder of Dumbledore. McGonagall was initially appointed as Headmistress, but was demoted after Voldemort took control of the school and placed Snape as Headmaster.
"I regret it," said Voldemort coldly. When Voldemort finally works out the truth about the Elder Wand (albeit incorrectly) he sends Lucius to fetch Snape and then confronts him before killing him off. He confesses his apparent “regret” for having to kill him, twice.
In her estimation, in an attempt to protect the true Harry's identity, Snape sacrifices Hedwig, thus keeping the other Death Eaters off his scent albeit for only a short time.
Severus Snape is one of the most evident outsider characters in the novels, described as an unpleasant, ugly man portrayed with constant ambiguity: Seemingly working for both Lord Voldemort (the evil side) and the Order of the Phoenix (the good side), he is presented as a double agent with uncertain allegiances.
The big “secret” about the Dumbeldore family that the title promises is actually an explanation of the last film's cliffhanger. Albus confirms to Creedence early on in the film that he is in fact a Dumbledore, quashing any rumor that Grindelwald had lied to the young boy in order to sway him to his movement.
Dumbledore reveals how thoroughly he loves Harry. Harry is brave, and Dumbledore is proud as any father would be. More than that, Dumbledore succumbs to a parent's weakness; he cares more about Harry's happiness and wellbeing than the wizarding world he is trying to protect.
"Hagrid is one of Voldemort's oldest associates, and knows his true identity" In Chamber of Secrets, it is revealed that Hagrid had been a student at Hogwarts during the same period that Tom Riddle (the true identity of Lord Voldemort) also frequented the school.
Moaning Myrtle
Born in the late 1920s to Muggle parents, Myrtle Warren started her Hogwarts life in the early 1940s, where she was sorted into Ravenclaw. She had no friends, and was bullied relentlessly because of her glasses and acne. But she would soon have all of eternity to get her own back.
In fact, at the beginning of the series, barely anyone but Dumbledore and Hagrid knew that Voldemort was the charming, successful Tom Marvolo Riddle.
So in summary, Snape is so angry with Harry in particular because he is petty in a sense; punishing the son for the sins of a father he never knew. He's ferocious with the other houses and is only nice to his Slytherins because he needs to preserve his role as a spy.
Snape was revealed to have been in love with Harry Potter's mother, Lily, since childhood. That feeling lasted beyond her death, and into his own final moments. That's why it's so surprising that Snape became a Death Eater.
Snape's love for Lily fed his hatred for James, and meant he would stop at nothing ' even arranging the murder of her child ' to possess Lily. Lily's life would be spared in return for Snape giving information of the prophesy to Lord Voldemort.