Biography
Ingeborg von Holstein-Plön was born circa 1316 to Gerhard IV. von Holstein-Plön (c1277-c1323) and Anastasia von Wittenberg (c1291-aft1315) and died after 1349 of unspecified causes. She married Konrad I. von Oldenburg (c1300-1347) .
Children
| Name | Birth | Death | Joined with |
| Konrad II. von Oldenburg (c1336-1401) | 1336 | 1401 | Kunigunde von Diepholz |
| Gerhard von Oldenburg (?-1368) | |||
| Agnes von Oldenburg | |||
| Christian V. von Oldenburg (c1342-1423) | 1342 Schloss Oldenburg, Oldenburg, Lower Saxony, Germany | 1423 | Agnes von Hohnstein-Heringen (c1360-1404) |
Footnotes (including sources)
| ‡ General |