The rank of kou (侯, marquis, margrave[1][2]) is held by the highest ranking members of the monarch's court. Courtiers holding the rank of Kou (侯) include the following:
- The Sankou (三公) - The three lords-of-court, the monarch's advisors who serve under the Saiho and are responsible for the monarch's education. They do not hold any power to make political decisions.
- The Chousai (冢宰, High Mandarin) - The Prime Minister of the royal court, oversees the Six Ministries.
- The Provincial Lords (州侯, Shuukou) - The governors appointed by the monarch to serve as the governor of a province in a Kingdom.