| UISNECH, Colmán Mór mac Diarmait of | | B. 532 | | D. BET 552 AND 561 |
| ULFHADA MAC AIRT, Alistair | | | | D. 226 |
| ULSTER, Dubthach of | | | | |
| ULSTER, Indecht ingen Lugdach of Ireland | | | | |
| ULSTER, Luigheach Meann of | | B. 250 | | D. ABT 307 |
| UMBRIA, Claudia | | | | |
| UNIFICADOR, Ariaric Rotesthes de Visigothie o | | B. 310 | | D. 366 |
| UNKNOWN, Cyllinus | | | | |
| UNREADY, Æthelred the | | | | D. 23 APR 1016 |
| UNREADY, Eadgyth daughter of Æthelred the | | B. BEF 993 | | D. ABT 1022 |
| UPPSALA, Eystein Adilsson of | | B. 594 | | D. 671 |
| UPPSALE, Anund | | B. ABT 840 | | |
| URANIA DE PARTHIE, Julia I | | B. 31 BC | | D. ABT 35 |
| URGULANILLA, Plautia | | | | |
| UTHER, Madawg ap | | B. 485 | | |
| UTHYR, Gwyar verch | | | | |
| | | | |
| VALDARSSON, Harald | | | | |
| VALENTINE, Hannah | | B. 30 OCT 1845 | | D. 7 NOV 1908 |
| VALERIUS, Constantius Flavius Emperor of Rome | | B. 31 MAR 250 | | D. 25 JUL 306 |
| VALERIUS, Flavius | | | | |
| VALESDATTER, Arson | | B. 402 | | D. 435 |
| VAN BETUWE, Adele | | B. ABT 905 | | D. 950 |
| VAN BETUWE, Count Ricfried II | | B. ABT 895 | | D. ABT 950 |
| VAN BLARICOM, Bertha Minerva | | B. 12 OCT 1881 | | D. 10 MAR 1974 |
| VAN BOSPORUS, Asander | | B. ABT 60 BC | | |
| VAN BOURGONDIE, Guntharich III | | B. 280 | | D. 330 |
| VAN BOURGONDIE, Helderich | | B. 270 | | |
| VAN BYZANTIUM, Procopia | | | | |
| VAN DE BETUWE, Bertha | | B. 937 | | D. 30 OCT 983 |
| VAN DE BETUWE, Richfried | | B. ABT 870 | | D. 953 |