A more thorough explanation:

Advocatio is a term used in history and law. It has several meanings:

1. When someone manages a business for someone else who is higher up than them, this is called advocatio.
2. When someone defends a religious establishment, this is also called advocatio.
3. Advocatio can also refer to the legal right to appoint a priest or minister to a church or religious establishment. This is called advowson.
4. Finally, advocatio can refer to the work of a lawyer or advocate who helps someone with legal issues.

For example, if a manager is sick and cannot come to work, someone else might take over their job for a short time. This is an example of advocatio. Another example is when a lawyer helps someone who is in trouble with the law. The lawyer is providing advocatio to their client.