Recent studies of his body using CT scans and DNA tests show that he had two children, but they died very young. Scientists now believe he died from a broken leg, made more complicated by bone disease and malaria. Before this discovery there were many theories about his early death, including murder. It is quite certain that he was infected by several strains of malaria, and very likely that he had some genetic defects caused by inbreeding. His parents were brother and sister. The final cause of his death is still unclear.