Alice and Frank Longbottom
They were captured and tortured extensively with the Cruciatus Curse, and although the Death Eaters were caught and sentenced to life imprisonment in Azkaban for their crimes, their victims would never recover. Alice was deemed insane, and lost her capability to function in society. She and Frank were placed in the permanent ward of St Mungo's Hospital for Magical Maladies and Injuries, where they would reside for the rest of their lives not being able to recognise their son. Neville regularly visits his parents for Christmas and other holidays. Though his parents do not overtly recognise Neville on these visits, Alice customarily gives her son chewing gum wrappers, which he keeps. Neville was taunted about his parents' state by one of their attackers, Bellatrix Lestrange, during the Battle of the Department of Mysteries. Neville witnessed the death of Bellatrix at Molly Weasley's hands during the Battle of Hogwarts.