Henry IV, Duke of Brunswick-Grubenhagen
|Henry IV of Brunswick Grubenhagen|
|Spouse(s)||Elisabeth of Saxe-Lauenburg|
|Noble family||House of Guelph|
|Father||Henry III of Brunswick-Grubenhagen|
|Mother||Margaret of Żagań|
|Died||6 December 1526
Salzderhelden (now part of Einbeck)
Henry was the son of Henry III of Brunswick-Grubenhagen and Margaret, a daughter of the Duke Jan I of Żagań and Scholastica of Saxe-Wittenberg. After his father's death in 1464, he succeeded him as Prince of Grubenhagen. Since he was a minor, he was under the guardianship of his uncle, Albert II until he came of age in 1479. After 1479, he divided the principality with Albert. Albert received Osterode Castle and Herzberg Castle; Henry received Heldenburg Castle. They ruled Grubenhagen Castle jointly.
After Albert II died in1485, Henry became guardian his underage cousin Philip I. When Henry died childless in 1526, Philip I inherited his territory and thereby reunited all parts of Grubenhagen.
Henry married on 26 August 1494 in Einbeck with Elisabeth of Saxe-Lauenburg (died: after 7 April 1542), the daughter of Duke John IV of Saxe-Lauenburg and Dorothea of Brandenburg. The marriage remained childless 
References and sources
Ludwig Ferdinand Spehr (1880), "Heinrich III., Herzog von Braunschweig-Grubenhagen", Allgemeine Deutsche Biographie (ADB) (in German) 11, Leipzig: Duncker & Humblot, pp. 488–489
- Cawley, Charles, Medieval Lands Project, Medieval Lands database, Foundation for Medieval Genealogy, retrieved August 2012
- Cawley, Charles, Foundation of Medieval Society: Medieval Lands Project, Medieval Lands database, Foundation for Medieval Genealogy, retrieved August 2012,[better source needed]
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