Books of Law
After conquering the Seven Kingdoms, King Aegon I Targaryen allowed each region to retain its own laws and customs. Aegon often travelled the realm with six maesters who educated him on each region's local customs and history. Aegon's grandson, King Jaehaerys I Targaryen, had another vision for his realm, however. In 55 AC, Jaehaerys, assisted by his "smaller council" (Septon Barth, Grand Maester Benifer, Lord Albin Massey, and Queen Alysanne Targaryen), began work to create the first unified code of law, codifying, organizing, and reforming all the laws of the kingdom. These reforms would take decades and would result in the creation of the Books of Law. Among the books is the Great Code of Septon Barth, who contributed the most in this project.
Presumably, the laws enacted by Jaehaerys's predecessors are part of the Books of Law, such as:
- The King's Peace
- The rule of six and the rule of thumb
- The right of pit and gallows
- King Maegor's laws