- b.~ 1110 in Oldenburg, Germany d.1167 in Oldenburg, Germany
- b.~ 1145 in Oldenburg, Germany d.> 1209 in Oldenburg, Germany
- b.~ 1120 in Stotel, Hannover, Prussia d.UNKNOWN
- b.~ 1178 in Oldenburg, Germany d.<12 Jun 1243 in Oldenburg, Germany
- b.1124 in Wickrath, Rheinland, Prussia d.UNKNOWN
- b.~ 1150 in Wickrath, Rheinland, Prussia d.> 1211
- b.1128 in Are, Rheinland, Prussia d.UNKNOWN