What does the Latin term corona custodium regis mean and where does it originate?

The Latin term "corona custodium regis" translates to "crown of the king's guardianship" or "crown of the king’s custody." It originates from the legal and administrative context of medieval Europe, particularly relating to the authority and responsibilities of the monarchy over certain properties and subjects. This term reflects the king's role as a protector and steward of his realm, emphasizing the connection between royal power and governance.