Harry's parents, James and Lily Potter, were killed by Lord Voldemort when Harry was just a baby. This event has a profound impact on Harry's life, and it shapes who he becomes as a person. He grows up without knowing his parents, and he is constantly reminded of their death by the scar on his forehead that Voldemort gave him. The death of his parents also motivates Harry to fight against Voldemort and to protect others from the evil wizard.