Multiple choice general knowledge Who is Killed in the 'Harry Potter and the order of the Phoenix'? Professor Lupin Sirius Black Professor Mcgonagall Bellatrix Reveal answer Fill a bubble to check yourself B Correct answer Explanation Sirius Black dies in Harry Potter and the Order of the Phoenix during the Battle of the Department of Mysteries. He is killed by Bellatrix Lestrange when her Stunning Spell knocks him through the mysterious veil in the Death Chamber.