| Termen/ Term | Nr. apariții/ No. occurrences |
| Ioachim Napoleon Murat | 1 |
| Ioachim Pectari | 5 |
| Ioan Albert | 349 |
| Ioan Alexandru | 19 |
| Ioan Alexandru -*Mihail | 148 |
| Ioan Asan I C | 1 |
| Ioan Asan II | 245 |
| Ioan Comnen Ducas | 1 |
| Ioan Fara Țara | 2 |
| Ioan Friederich | 1 |
| Ioan I | 23 |
| Ioan I Comnen | 7 |
| Ioan I Tzimiskes | 5 |
| Ioan I Zapolya | 27 |
| Ioan Iacob Heraclid | 52 |
| Ioan II | 330 |
| Ioan II Asan | 3 |
| Ioan II Comn | 1 |
| Ioan II Comnen | 40 |
| Ioan II Sigismund | 30 |
| Ioan III | 4 |
| Ioan III Ducas | 99 |
| Ioan III Sobieski | 30 |
| Ioan III Vatatzes | 81 |
| Ioan Kemeny | 2 |
| Ioan Sigismund | 7 |
| Ioan Sigismund - Isabela | 9 |
| Ioan Sobieski | 46 |
| Ioan Sracimir | 3 |
| Ioan Stracimir | 1 |
| Ioan Tziminskes | 3 |
| Ioan Tzimiskes | 1 |
| Ioan Tzimiskes - Vasile II | 1 |
| Ioan Tzimiskes-Constantin Viii | 1 |
| Ioan V | 2 |
| Ioan VII | 1 |
| Ioan VIII | 2 |
| Ioan Vodă cel Cumplit | 5 |
| Ioan Zapolya | 4 |
| Ioban Cazimir | 1 |
| Iohan Ernest | 1 |
| Iohan Friederic | 1 |
| Iohan Friedrich | 1 |
| Iohann | 1 |
| Iohann Adolf | 1 |
| Iohann Cristian | 1 |
| Iohann Ernest | 2 |
| Iohann Georg I [Albertinische Linie] | 1 |
| Iohann George II | 1 |
| Iohann Iakob Khuen de Bellasi | 1 |