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Agnes of Brunswick-Grubenhagen

Agnes of Brunswick-Grubenhagen (c. 1318–1371 or earlier) was a daughter of Duke Henry II of Brunswick-Grubenhagen and Jutta of Brandenburg. She married Duke Barnim III of Pomerania-Stettin and was the mother of dukes Casimir III, Swantibor III and Bogislaw VII.

References

  1. en.wikipedia.org/wiki/Barnim_III
  2. de.wikipedia.org/wiki/Barnim_III.