In “Harry Potter and the Goblet of Fire,” the most significant death is that of Cedric Diggory. He is a popular and talented student from Hogwarts and serves as a rival to Harry during the Triwizard Tournament. Cedric meets his tragic fate during the final task of the tournament when Harry and he jointly reach the Triwizard Cup. Unfortunately, the cup is a Portkey that takes them to a graveyard where Voldemort is waiting.
Voldemort orders his Death Eaters to kill Cedric, and he is murdered right in front of Harry. This event is pivotal as it marks a turning point in the series, signaling the return of Voldemort to power and the onset of darker times for the wizarding world. Cedric’s death deeply impacts Harry, who is profoundly affected by the loss of someone who represents innocence and bravery.