| Termen/ Term | Nr. apariții/ No. occurrences |
| Justinianus I | 3 |
| J.Schwerdtner | 1 |
| Jagerndorf | 2 |
| Jan Cazimir | 2,522 |
| Jan Cazimir II | 6 |
| Jan III Sobieski | 1 |
| Japonia | 13 |
| Joachim Frederic | 1 |
| Joachim Pectari | 1 |
| Joan Casimir | 1 |
| Jockey Club | 1 |
| Johan Frederich - Heinrich | 2 |
| Johan Fridrich | 2 |
| Johan von Kustrin | 1 |
| Johann | 4 |
| Johann Adolf | 2 |
| Johann Christian | 1 |
| Johann de Brandenburg - Kustrin | 1 |
| Johann Ernest | 10 |
| Johann Friedrich | 4 |
| Johann Georg | 3 |
| Johann Georg I | 1 |
| Johann Georg II | 3 |
| Johann Philipp von Walderdorf | 1 |
| Johann Sigismund | 1 |
| Johannes Constorfer | 10 |
| Johannes Georg I | 1 |
| Johannes Sigismund | 1 |
| John Sigismund | 1 |
| Jos. Tautenhayn | 1 |
| Jose I | 1 |
| Josef II | 11 |
| Josef II Coregent | 1 |
| Joseph I | 1 |
| Joseph II | 5 |
| Josif II | 6 |
| Jovianus | 8 |
| Juba I | 4 |
| Julianus II | 2 |
| Justin II - Sofia | 4 |
| Justinianus | 1 |
| Justinianus I | 356 |
| Justinianus II | 2 |
| Justinius II | 1 |
| Justinus I | 87 |
| Justinus II | 352 |
| Justinus II - Sofia | 19 |