A more thorough explanation:

Definition: A laudator is a person who serves as a character witness in a criminal trial or an arbitrator in historical contexts.

Examples:

• In a Roman law court, a laudator would be called upon to testify about the good character of the accused.
• During the Middle Ages, a laudator might be appointed to settle a dispute between two parties as an arbitrator.

These examples illustrate how a laudator was used in different legal contexts throughout history. In both cases, the laudator was called upon to provide testimony or make a decision based on their knowledge and expertise.