| Singular | Plural | |
|---|---|---|
| Nominativ | castellaque, castella | castelle, castellae |
| Genitiv | castelle, castellae | — |
| Dativ | castelle, castellae | castellis, castellisque |
| Akkusativ | — | — |
| Ablativ | castellaque, castella | castellis, castellisque |
| Vokativ | castellaque, castella | castelle, castellae |