Servitium regale
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Royal service, or the rights and prerogatives of manors which belong to the king as lord of the same, and which were generally reckoned to be six, viz.; Power of judicature, in matters of property; power of life and death, in felonies and murder; a right to waifs and strays; assessments ; minting of money; and assise of bread, beer, weights, and measures.
Cowell.