About Nurmengard

Nurmengard is the prison that Gellert Grindelwald built to keep his enemies and Muggles. The entrance of Nurmengard was marked with the symbol of the Deathly Hallows, along with the legend "For the greater good". After Dumbledore defeated Grindelwald, the prisoners were released and Grindelwald himself was imprisoned in the top-most cell. Nurmengard is depicted in the final book when Voldemort arrives at the prison looking for Grindelwald and information about the Elder Wand. After Grindelwald refuses to give him any information, Voldemort kills his predecessor in his own prison.