Royal prerogatives pertaining to the Crown depart from the Crown by the consent of the kings.

Explanation

Royal prerogatives are not inherent but derived from law; they may be relinquished or limited by the sovereign's own consent or by constitutional constraint.

Where this applies

• A state legislature votes to limit the governor's emergency powers, and the court upholds the restriction because governmental prerogatives can be surrendered or constrained by the sovereign's own constitutional act.
• Parliament voluntarily cedes certain powers to a new constitutional court, and the transfer is valid because sovereign prerogatives depart from the sovereign by the sovereign's own consent.
• A county government agrees by charter amendment to limit its own taxing power, and the restriction is enforceable because governmental authority can be voluntarily relinquished through the proper legal process.