Obs. [f. castel, CASTLE sb. + -ERY; or ad. OF. castelerie, chastelerie territory belonging to a castle, med.L. castellaria in same sense.] The government or jurisdiction of a castle; the territory subject to it.
1679. Blount, Anc. Tenures, 116. The Castelry which he and his ancestors have of Baynards Castle.
1877. G. T. Clark, in Archæol. Cambr., 121. Both are mentioned as the seats of a Castelry, a sort of honour or superior lordship attached to the castle.