The five kings include Robert's heir apparent, Joffrey, and his younger brothers, Stannis and Renly. The other two kings want nothing to do with the Iron Throne, but instead declare Viserys I Targaryen Image via HBO One of the kings depicted on House of the Dragon, Viserys bequeathed the throne to his daughter Rhaenyra, and then had several sons during his second marriage. The five kings in question were Robb Stark, Joffrey Baratheon, Stannis Baratheon, Renly Baratheon, and Balon Greyjoy. Each king had their own level of success within the war and each man had his own set of strengths that made them a contender as well as weaknesses that led to their downfall. Renly's Strength: Likability q9zjv.