A more thorough explanation:

Capitaneus is a term that has different meanings depending on the context in which it is used.

In history, capitaneus referred to a tenant in capite, which means someone who held title directly from the king. For example, in medieval England, the barons were considered capitanei because they held their lands directly from the king. This gave them a lot of power and influence in the kingdom.

In maritime law, capitaneus refers to a ship captain or naval commander. For example, the capitaneus of a cruise ship is responsible for the safety of the passengers and crew, as well as the navigation of the ship.

Capitaneus can also refer to a ruler or leader. For example, in ancient Rome, the capitaneus was the commander of a military unit. In modern times, the term can be used to refer to any person who is in charge of a group or organization.

Overall, capitaneus is a term that has been used throughout history to refer to people in positions of power and authority.