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  ===A Game of Thrones===
  In ''A Game of Thrones'', Viserys Targaryen and Illyrio Mopatis marry Daenerys Targaryen to ''Khal'' Drogo to get his support and warriors for the invasion of Westeros.  He proves a kind, sensitive, and loving husband. After there is a failed attempt on Daenerys's life, he vows to invade Westeros, but is wounded in a subsequent battle. He begins developing a severe case of sepsis. Daenerys unwittingly sacrifices their unborn son to save him with blood magic. While this saves his life, he is left in a catatonic state. Daenerys  smothers him with a pillow. At his funeral pyre, she walks with her dragon eggs into the flames and emerges unscathed with three baby dragons. He is the namesake of her favorite dragon, Drogon.
  ''Khal'' Drogo is not a point of view character in the novels, so his actions are witnessed and interpreted through the eyes of Daenerys Targaryen.