1. One that preserves from injury or violation; protector
2. One that is responsible for the care, restoration, and repair of archival or museum articles
3. A person, official, or institution designated to take over and protect the interests of an incompetent
4. An official charged with the protection of something affecting public welfare and interests
(lat.)für die Pflege und Instandhaltung von Kunstwerken und Exponaten zuständiger Experte.