- Henry I, Duke of Brunswick-Lüneburg
Henry (1267 –
7 September 1322 , Salzderhelden), Duke ofBrunswick-Lüneburg , called the Admirable (Latin "Henricus Mirabilis"), was the first ruler of the Principality ofGrubenhagen .The eldest son of
Albert I, Duke of Brunswick-Lüneburg , he first took over the state after his fathers death jointly with two of his brothers. In 1291 the brothers divided the territory; Henry received the part that came to be known as Grubenhagen. It included the cities ofEinbeck , half ofHamelin ,Clausthal ,Amelungsborn ,Duderstadt ,Herzberg , andOsterode . Henry quarreled with his brother Albert over Brunswick, but Albert prevailed, and Henry retreated to Grubenhagen. He took Einbeck as his residence.In 1320, Henry was appointed
count palatine of Saxony by the emperor. He died in 1322, and his three surviving sons who had not joined the Church divided his territory among each other.Family
Henry married Agnes, daughter of
Albert the Degenerate, Margrave of Meissen , in 1282. They had 16 children:
* Elizabeth (born c. 1282), marriedFrederick, Count of Beichlingen
* Otto (born c. 1283, died in or before 1309)
* Albert (born c. 1284, died after 1341), joined theTeutonic Order
* Adelaide (1285 – 1320), married KingHenry I of Bohemia
* Facie (daughter; born c. 1286, died before or in 1312)
*Agnes, Abbess of Osterode (born c. 1287, died between 1332 and 1336)
* Henry (born c. 1289, died before or in 1351)
* Frederick (c. 1291 – c. 1323)
*Adelheid of Brunswick (c. 1293 – 17 August 1324), marriedAndronikos III Palaiologos , Roman Emperor
* Conrad (c. 1294 – c. 1320)
* Mechtild (c. 1295 – 14 March 1344), marriedJohn III, Prince of Werle
* Ernest (c. 1297 – 11 March 1361)
* William (c. 1298 – 1360)
*Richardis, Abbess of Osterode (born c. 1300, died between 1332 and 1336)
* Margaret (born c. 1300, died in or after 1312)
* John, (born before 1322, died 23 May 1367), provost atEinbeck References
* Braunschweigisches Biographisches Lexikon, Appelhans 2006, ISBN 3-937664-46-7
* [http://welfen.de/heinrich5.htm At the House of Welf site]
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