Or did the deadly effects of generational inbreeding simply catch up with him and tragically cause an end to his life? The latter theory seems to be the most likely, according to historians, given that the boy king was disabled and ill for a portion of his life. He required a cane, and he walked with likely a club foot. His parents were related to one another. According to DNA analysis, they were potentially even siblings. He also suffered from several bouts of malaria