Draghignazzo

The skeletal remnants of a dragon to which its soul is fused. Dragons that die with a strong attachment to life may retain their souls in their carcass, letting them move even after death. With the lack of flesh on any of its bones, it's assumed that it must be excruciatingly difficult and painful for the dragon's soul to maintain its skeletal remains, but their desire to live makes their bones wander amid its territory it claimed while living. The only way to free the dragon's soul is to destroy its bones it has possessed.