principality · Germany and Central Europe
Principality of Grubenhagen
Origins
When the sons of Albert I of Brunswick divided their inheritance around 1291, Henry I the Admirable received Grubenhagen, named after a castle near Einbeck, with lands in the western Harz around Osterode and Herzberg. This became a separate Guelph principality.
Rule and society
The principality was small, divided at times among co-rulers. Its towns included Einbeck, whose beer was exported across northern Europe, and Osterode. Silver mining in the Harz around Clausthal brought income. Philip I introduced the Reformation in the 1530s. Herzberg castle served as the main residence.
Decline and legacy
When Philip II died without heirs in 1596, Henry Julius of the Principality of Wolfenbüttel seized Grubenhagen, but in 1617 an imperial court awarded it to the Principality of Lüneburg. It later formed part of the Electorate of Hanover and is now in Lower Saxony.
Lineage
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Cite this page
- APA
- The Epoch Institute. (2026). Principality of Grubenhagen. In The Epoch Institute States Register. https://the-epoch-institute.org/state/principality-of-grubenhagen
- MLA
- “Principality of Grubenhagen.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/principality-of-grubenhagen. Accessed .
- Chicago
- The Epoch Institute. “Principality of Grubenhagen.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/principality-of-grubenhagen.
- Harvard
- The Epoch Institute (2026) ‘Principality of Grubenhagen’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/principality-of-grubenhagen (Accessed: ).
Last reviewed October 2026Random state ↻