A Valyrian steel dagger,[2] fashioned in Old Valyria, eventually came into the possession of the Targaryen family. The blade is finely made of Valyrian steel, and the hilt is made of dragonbone and dragonglass. After the fall of the Targaryens, it was given to a catspaw to be used in an assassination attempt on Bran Stark. This weapon would indirectly begin the War of the Five Kings and, years later, also end the Great War when Arya Stark used it to kill the Night King. The Valyrian steel...