| Singular | Plural | |
|---|---|---|
| Nominativ | castellom, castellum, castellumque | castella, castellaque |
| Genitiv | castelli, castellique | castellorum |
| Dativ | castello, castelloque | castellisque, castellis |
| Akkusativ | castellum, castellumque | castella, castellaque |
| Ablativ | castello, castelloque | castellisque, castellis |
| Vokativ | castellum, castellumque | castella, castellaque |