| Sandra Jean OLBON (____ - ____) |
| Webb OLBON (1897 - 1899) |
| Éléonore Marie Desmier of OLBREUSE (3 JAN 1638/39 - 5 FEB 1721/22) |
| Elizabeth OLCOTT (____ - 1828) |
| George OLCOTT Jr (____ - ____) |
| Virginia Lilia OLDACH (9 JUL 1920 - ____) |
| Adelheid of OLDENBURG (1425 - 1475) |
| Adelheid of OLDENBURG (____ - 1513) |
| Adolph OLDENBURG (Count of Oldenburg) (BEF 1463 - 17 FEB 1499/00) |
| Agnes of OLDENBURG (____ - ____) |
| Agnes of OLDENBURG (ABT 1333 - ABT 1399) |
| Anastasia of OLDENBURG (ABT 1344 - ____) |
| Anna Cathrine of OLDENBURG (10 AUG 1618 - 20 AUG 1633) |
| Anna of OLDENBURG (1469 - 26 SEP 1505) |
| Anna of OLDENBURG (14 NOV 1501 - 24 SEP 1575) |
| Anna of OLDENBURG (1527 - 4 JUN 1535) |
| Anna of OLDENBURG (22 NOV 1532 - 1 OCT 1585) |
| Anna of OLDENBURG (3 APR 1539 - 25 AUG 1579) |
| Anna of OLDENBURG (28 MAR 1605 - 12 DEC 1688) |
| Anna Sophie of OLDENBURG (1 SEP 1647 - 1 JUL 1717) |
| Anne of OLDENBURG (12 DEC 1574 - 2 MAR 1618/19) |
| Anne of OLDENBURG (1579 - 1639) |
| Anthony Günther OLDENBURG (10 NOV 1583 - 19 JUN 1667) |
| Anton I OLDENBURG (Count of Oldenburg) (1505 - 22 JAN 1572/73) |
| Anton II OLDENBURG (Count of Oldenburg) (8 SEP 1550 - 25 OCT 1619) |
| Augusta of OLDENBURG (8 APR 1580 - 5 FEB 1638/39) |
| Beatrix of OLDENBURG (ABT 1130 - ABT 1148) |
| Burchard OLDENBURG (ABT 1175 - 6 JUL 1233) |
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