- Tut had a bone disorder that would have forced him to walk with a cane (probably due to inbreeding)
- He also had malaria, which probably contributed to his death (this is now the oldest genetic evidence of the disease ever found)
- A mummy known as KV55 has turned out to be Tut's father, Akhenaten. This is significant not only for the identification, but because he was controversial in that he attempted to convert Egypt to monotheism (and failed)
More details here.