There are not many cows. In the knight system of Han Dynasty, Hou Ting was the lowest rank among Marquis. In ancient times, it was difficult to be a marquis, because with a title, you can enjoy privileges and honors, and it is difficult for others to be a marquis except members of the royal family and those who have made great contributions.

However, the difficulty of sealing Hou also depends on the times: the less wars, the less opportunities for meritorious service, and the difficulty of sealing Hou; If it's troubled times, it's easier to seal Hou, because there are many wars, many opportunities for meritorious service, and sealing Hou is worthless.

In Guan Yu's time, wars were frequent, and the monarch would be rewarded with meritorious service. In troubled times, talents are needed, and it is easier for the monarch to win people's hearts with generous rewards.