A more thorough explanation:

custodes pacis

Custodes pacis were individuals responsible for maintaining peace and order in ancient times. They were also known as guardians or conservators of the peace. They were similar to modern-day peace officers.

In ancient Rome, custodes pacis were appointed to keep the peace in the city. They were responsible for preventing riots and disturbances and ensuring that people followed the law. Similarly, in medieval Europe, custodes pacis were appointed to maintain peace in towns and villages.

These examples illustrate how custodes pacis were responsible for maintaining peace and order in different societies throughout history.