Egypt's most famous pharaoh, King Tutankhamun, was a frail boy who suffered from a cleft palate and club foot. He died of complications from a broken leg exacerbated by malaria and his parents were most likely brother and sister. Two years of DNA testing and CT scans on Tut's 3,300-year-old mummy and 15 others are helping end many of the myths surrounding the boy king. While a comparatively minor ruler, he has captivated the public since the 1922 discovery of his tomb, which was filled with a stunning array of jewels and artifacts, including a golden funeral mask. The study published Wednesday in the Journal of the American Medical Association, provides the firmest family tree yet for Tut. The tests pointed to Pharaoh Akhenaten as his father. His mother was one of Akhenaten's sisters, it said. Speculation has long swirled over his death at 19. A hole in his skull fueled speculation he was murdered, until a 2005 CT scan ruled that out, finding the hole was likely from the mummification process. The scan also uncovered the broken leg. The newest tests paint a picture of a pharaoh whose immune system was likely weakened by congenital diseases. His death came from complications from the broken leg - along with a new discovery: severe malaria. The team said it found DNA of the malaria parasite in several of the mummies, some of the oldest ever isolated. The revelations are in stark contrast to the popular image of a graceful boy-king. They also highlighted the role genetics play in some diseases. The members of the 18th dynasty were closely inbred and the DNA studies found several genetic disorders in the mummies tested such as scoliosis, curvature of the spine, and club feet. The tests also disproved speculation that Tutankhamun and members of his family suffered from rare disorders that gave them feminine attributes and misshapen bones.