In the part of fire and blood when the next ruler takes power is very interesting. This is because A large section of “Fire and Blood” that I am reading is dedicated to the reign of Jaehaerys I, the longest-ruling Targaryen king. Known as the “Wise” king and the “Conciliator,” his reign starts out with conflict, when he chooses to marry his sister, Alysanne. Jaehaerys resists the attempts of many — including his own mother and advisors — to stop the marriage or remove him from power. Jaehaerys’s reign involves many ups and downs. He institutes many reforms in Westeros, from changes in taxes, to creating a comprehensive set of laws. He also deals with both man-made and natural disasters, including a famine and subsequent plague that kills indiscriminately, including one of Jaehaerys and Alysanne’s own children. The couple have thirteen children, with nine making it to adulthood. Notable among them are their eldest son and heir, Aemon, who marries a Baratheon lady, and Baelon, who marries his sister Alyssa and has three children: Viserys, Daemon, and Aerys.