Sigfrid von Ringelheim-Oldenburg
Sigfrid von was born about 0917 in Ringleheim, Goslar, Hannover, Germany.  Sigfrid von is no longer alive.

 Magdalena Ascanien
Magdalena was born about 0933 in Saxony, Germany.

 Dietburga von Oldenburg
Dietburga von was born about 0960 in Oldenburg, Saxony, Germany.