Other branches that did not have full sovereignty existed in the Dannenberg, Harburg, Gifhorn, Bevern, Osterode, Herzberg, Salzderhelden and Einbeck.
However, Eric died unexpectedly on 14 May 1532, during a banquet in Fürstenau to celebrate his election in Osnabrück with his noble friends.
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Eric of Brunswick-Grubenhagen (1478 – 14 May 1532 in Fürstenau) was from 1508 to 1532 prince-bishop of Paderborn and Osnabrück.
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In the Roman Catholic literature his stance on religious matters is described as ambiguous, because he witnessed the wedding of a former Benedictine nun from Kaufungen.
:: * Sophie (1579-1618) married 1607 Duke Philip II of Pomerania-Stettin
He trained in the military arts by fighting under Otto of Brunswick against Charles of Durazzo, in 1382.
The village of Kirch Grubenhagen in the municipality of Vollrathsruhe in Müritz district in Mecklenburg-Vorpommern, Germany
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A village in the municipality of Weitenhagen in the district of Ostvorpommern in Mecklenburg-Vorpommern, Germany
Gerhard VI of Jülich, Count of Berg and Ravensberg
He was the son of Duke Henry I "the Marvelous" of Brunswick-Grubenhagen and his wife Agnes of Meissen, daughter of Margrave Albert II of Meissen.
John II, Duke of Brunswick-Grubenhagen (d. 1401), canon in Hildesheim, Einbeck and Mainz, son of Ernest I, Duke of Brunswick-Grubenhagen
After his brother William had died in 1292, he was also able to acquire the subdivision around Wolfenbüttel against his elder brother Henry, who only retained Grubenhagen.
Wolfgang was born on 6 April 1531 in Herzberg, the fifth son of Duke Philip I of Brunswick-Grubenhagen and his second wife, Catherine of Mansfeld.
Principality of Grubenhagen | Otto, Duke of Brunswick-Grubenhagen | Grubenhagen | Ernest I, Duke of Brunswick-Grubenhagen |
Early in 1625 he became ruler of all West Pomerania on the death of the last Duke of Wolgast, Philipp Julius, and on the 19 February he was married to Elisabeth (24 September 1580 - 21 December 1653), fifth daughter of John II, Duke of Schleswig-Holstein-Sonderburg, by his first wife, Elisabeth of Brunswick-Grubenhagen.
As of 1789, the Principality of Blankenburg was surrounded by (from the north clockwise): Brandenburg (County of Stolberg-Wernigerode and Principality of Halberstadt), Anhalt-Bernburg, Brandenburg (County of Hohnstein), and Brunswick-Grubenhagen.
In 1448 Henry III of Brunswick-Grubenhagen had to fortify himself in the castle, after he exposed himself to attack by Landgrave Louis I of Hesse following a raid in the area of Hofgeismar.
Loysia of Lusignan, (probably) married after March 19, 1406 her cousin Eudes of Lusignan (d. Palermo, 1421), Titular Seneschal of Jerusalem, in the service of the King of Aragon, son of James I of Lusignan, King of Cyprus, and wife Helvis or Helisia of Brunswick-Grubenhagen, without issue
Grubenhagen was located around the southwestern edge of the Harz, and included the towns of Osterode am Harz, Herzberg am Harz, Duderstadt, Einbeck and the eastern exclave of Elbingerode.