King Tutankhamun died at the age of 19 and it was a mystery how he died. Consider it mystery no more. Extensive studies of his mummy revealed that he suffered from a cleft palate and club foot, likely forcing him to walk with a cane, and died from complications from a broken leg exacerbated by malaria.
DNA tests established the clearest yet family tree for Tut. His father was most likely Akhenaten while his mother was a still unidentified sister of Akhenaten.