King Gwangjong vs Samsenethai

Gwangjong issued an edict freeing many slaves and reclassifying them as commoners. This measure aimed to undermine the economic base of powerful clans who relied on slave labor, while increasing the tax-paying population under direct royal control.

King Gwangjong initiated a systematic purge of powerful aristocratic clans that had dominated Goryeo politics. He ordered the execution or exile of many nobles, confiscated their lands, and freed thousands of slaves to weaken the old elite and strengthen royal authority.

Gwangjong established the gwageo civil service examination system in Goryeo, based on the Chinese Tang model. This reform allowed talented individuals from lower social classes to enter government service, reducing the power of hereditary aristocrats and creating a merit-based bureaucracy.

Gwangjong decreed that only the king could grant the right to wear purple robes, a symbol of high office. This edict stripped powerful nobles of their self-assumed privileges and reinforced the king's sole authority to confer rank and status.

Samsenethai succeeded his father Fa Ngum after the latter's exile. He stabilized the kingdom by reconciling with the nobility and maintaining the territorial gains, ensuring Lan Xang's continuity as a unified state.

Samsenethai ordered the first comprehensive census of Lan Xang, counting the population and resources of the kingdom. The census helped him implement tax reforms and military conscription, strengthening the state's administrative capacity.

Samsenethai sent tributary missions to the Ming Dynasty in China, establishing formal diplomatic relations. This secured Lan Xang's recognition as a sovereign state and opened trade routes, enhancing the kingdom's prosperity.