Duke Ernest II of Brunswick-Grubenhagen (1418–1466) was the second son of Duke Eric I of Brunswick-Grubenhagen and his wife, Elisabeth of Brunswick-Göttingen.
When his father died in 1427, Ernest II was still a minor. His mother and his first cousin once removed, Otto II, acted as guardians and regents for Ernest and his brothers Henry III and Albert II, until the three brothers came of age in 1440.
When Henry III died in 1464, Ernest II abdicated and became a canon in Halberstadt.
Ernest II never married.
Ancestors of Ernest II, Duke of Brunswick-Grubenhagen |
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| | | | | | | | | 16. Henry I, Duke of Brunswick-Grubenhagen | | | | | | | 8. Ernest I, Duke of Brunswick-Grubenhagen | | | | | | | | | | 17. Agnes of Meissen | | | | | | | 4. Albert I, Duke of Brunswick-Grubenhagen | | | | | | | | | | | | 18. Henry II of Everstein-Polle | | | | | | | 9. Adelaide of Everstein-Polle | | | | | | | | | | 19. Adelaide of Lippe | | | | | | | 2. Eric I, Duke of Brunswick-Grubenhagen | | | | | | | | | | | | | | 20. Magnus the Pious, Duke of Brunswick-Lüneburg | | | | | | | 10. Magnus II, Duke of Brunswick-Lüneburg | | | | | | | | | | 21. Sophie of Brandenburg-Stendal | | | | | | | 5. Agnes of Brunswick-Lüneburg | | | | | | | | | | | | 22. Bernhard III, Prince of Anhalt-Bernburg | | | | | | | 11. Catherine of Anhalt-Bernburg | | | | | | | | | | 23. Agnes of Saxe-Wittenberg | | | | | | | 1. Ernest II, Duke of Brunswick-Grubenhagen | | | | | | | | | | | | | | | 24. Albert II, Duke of Brunswick-Lüneburg | | | | | | | 12. Ernest I, Duke of Brunswick-Göttingen | | | | | | | | | | 25. Rixa of Werle | | | | | | | 6. Otto I, Duke of Brunswick-Göttingen | | | | | | | | | | | | 26. Henry II, Landgrave of Hesse | | | | | | | 13. Elisabeth of Hesse | | | | | | | | | | 27. Elisabeth of Thuringia | | | | | | | 3. Elisabeth of Brunswick-Göttingen | | | | | | | | | | | | | | 28. Gerhard VI of Jülich, Count of Berg and Ravensberg | | | | | | | 14. William VII of Jülich, 1st Duke of Berg | | | | | | | | | | 29. Margaret of Ravensberg | | | | | | | 7. Margaret of Jülich-Berg | | | | | | | | | | | | 30. Rupert II, Elector Palatine | | | | | | | 15. Anna of the Palatinate | | | | | | | | | | 31. Beatrice of Sicily | | | | | | | | | | | | | | | | | | | |
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