King Viserys' death in season one of "House of the Dragon" is one of the most crucial, as it sets off a battle for succession between his children Rhaenyra and Aegon. HBO"House of the Dragon" is no stranger to death, murder, or even fratricide. Some of the show's most tragic deaths are tied to children and childbirth.From King Viserys' death to Prince Lucerys, we've ranked the top 10 saddest deaths.