| English | eng-000 |
| Charles August | |
| Deutsch | deu-000 | Christian August von Schleswig-Holstein-Sonderburg-Augustenburg |
| 日本語 | jpn-000 | カール・アウグスト |
| Nederlands | nld-000 | Christiaan August van Sleeswijk-Holstein-Sonderburg-Augustenburg |
| bokmål | nob-000 | Christian August |
| svenska | swe-000 | Prins Karl August |