Castellain
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
or CASTELLANUS. The keeper or captain of a fortified castle; the constable of a castle. Spelman; Termes de la Ley; Blount.
CA8TELLARIUM, or CASTELLATUS.
In old English law
The precinct or jurisdiction of a castle.
Blount.