Professor Quirrel died in the first book, Harry Potter and the Philosopher's Stone.
Hard to define what 'first prisoner' is. It could be Professor Quirrell. It could be the wand maker, Ollivander.
The first defense against the dark arts teacher in the Harry Potter series is called Professor Quirrell.
Professor Quirrell
Ian Hart played Quirinus Quirrell in the movie Harry Potter and the Philosopher's Stone. The character Professor Quirinus Quirrell was a half-blood wizard who attended Hogwarts School of Witchcraft and Wizardry and was sorted into Ravenclaw House. He was the Muggle Studies professor at Hogwarts, though he later became the Defence Against the Dark Arts teacher during the 1991-1992 school year.
Professor Quirrell was the Defence Against the Dark Arts teacher in Harry Potter's first year. He died at the end of the year after battling Harry for the philosopher's stone, which he was trying to steal for Lord Voldemort.Voldemort was sharing Quirrell's body. His head was visible on the back of Quirrell's, which is why he had taken to wearing a turban.
Lord Voldemort was not yet sharing Quirrell's body at the time of shaking Harry's hand. This is a common misconception because when we first meet Quirrell in the movie he is already wearing a turban. However, in the book once Harry gets to Hogwarts he mentions that Quirrell has started to wear a turban.
Professor Quirrell, in the first book/movie. Quirrell was sharing his body with the soul of Lord Voldemort uses him because he's still trying to gain his strength back after losing his body from the attempted murder of baby Harry at Godric's Hollow. Voldemort's face can actually be seen at the back of Quirrell's head. Quirrell wears a turban throughout the book to hide this fact.
Yes, Quirrell died at the end of the first book.
Harry Potter first saw Lord Voldemort on Quirinus Quirrell's head in the final chamber.
Septima
Severus Snape.