| Nominativ | cataphractaria, cataphractarius, cataphractarium | cataphractaria, cataphractarii, cataphractariae |
| Genitiv | cataphractarii, cataphractarii, cataphractariae | cataphractariorum, cataphractariorum, cataphractariarum |
| Dativ | cataphractario, cataphractario, cataphractariae | cataphractariis |
| Akkusativ | cataphractarium, cataphractarium, cataphractariam | cataphractarias, cataphractaria, cataphractarios |
| Ablativ | cataphractario, cataphractaria, cataphractario | cataphractariis |
| Vokativ | cataphractarium, cataphractarie, cataphractaria | cataphractaria, cataphractarii, cataphractariae |
