Gogukcheon of Goguryeo

[5] Lady U remained queen after her husband's death due to her marriage with Gogukcheon's brother and subsequent king Sansang.

[3] In 184, Gogukcheon sent his younger brother, Prince Gye-su to fight the Chinese Han dynasty invasion force of the governor of Liaodong.

[3] As a result, he discovered many talented people from all over Goguryeo, the greatest of them being Ŭl P'a-so, who was given the position of Prime Minister.

[3][7] The ancient text Samguk sagi says that Gogukcheon went hunting one day in 194 and encountered a starving village.

This system was maintained by the age of Joseon dynasty as "Hwangok", which indicates the law was highly preserved more than a thousand years.