| INGEN TÚATHAL TEACHTMHAR, Dairne | | B. ABT 70 | | D. 85 |
| INGEN TÚATHAL TEACHTMHAR, Fithir | | B. ABT 70 | | D. 85 |
| INIGUEZ, Indigo | | B. 763 | | |
| IÑIGUEZ, Oñeca Princess Countess of Pomplona | | B. 828 | | D. 853 |
| IÑIGUEZ, Oñeca | | B. ABT 808 | | D. 853 |
| INREGILLENSIS, Appius Claudius Crassus | | B. ABT 455 BC | | D. AFT 424 BC |
| INREGILLENSIS, Appius Claudius Crassus Sabinus | | B. 430 BC | | |
| IOTAPA, Julia | | B. ABT 60 | | |
| IOTAPA DAUGHTER OF ANTIOCHUS IV, Julia of Cetia | | B. ABT 45 | | |
| IRELAND, Aedan son of Ainmuire of | | | | |
| IRELAND, Aengus Mac Erc of | | B. 434 | | |
| IRELAND, Ainmuire of | | B. 460 | | D. 569 |
| IRELAND, Angus Buiding mac Fedelmid of | | B. 297 | | |
| IRELAND, Benta Creombthan | | | | |
| IRELAND, Breas Nar | | B. 155 BC | | D. 123 BC |
| IRELAND, Clothfionn Feidlioch Croidheirg Uchtleathan | | B. BEF 189 BC | | D. 100 BC |
| IRELAND, Dervorgill of | | | | |
| IRELAND, Dlle | | B. 400 | | |
| IRELAND, Eochaidh of Dalraida | | B. 370 | | D. 439 |
| IRELAND, Erc Derg Mac Briuin of | | B. ABT 412 | | D. AFT 474 |
| IRELAND, Fiacha Finnolach of | | B. 10 | | D. 57 |
| IRELAND, Manius spouse of Corbred Suin mac Roshin I of | | | | D. DECEASED |
| IRELAND, Mendhbh Lithdnearg | | B. ABT 124 | | D. ABT 155 |
| IRELAND, Miss AP Kynuawr OF | | B. 390 | | |
| IRELAND, Osybd of | | | | |
| IRELAND, Sabilla of | | | | D. ABT 580 |
| IRELAND, Urlachan of | | B. 544 | | D. 607 |
| IRLANDE, Gania | | B. 430 | | |
| IRLANDE, Tigrida | | B. 350 | | D. 410 |
| ISAURICA, Plotia | | B. 45 | | D. 100 |