Henry I, Duke of Brunswick-Grubenhagen

Intro German nobleman; prince of Brunswick-Grubenhagen
A.K.A. Henri ier de brunswick-lunebourg
Was Noble Aristocrat
From Germany
Type Royals
Gender male
Birth August 1267
Death 7 September 1322, Germany (aged 55 years)

Henry I (August 1267 – 7 September 1322), Duke of Brunswick-Lüneburg, called the Admirable (German: Heinrich der Wunderliche, Latin: Henricus Mirabilis), a member of the House of Welf, was the first ruler of the Principality of Grubenhagen from 1291 until his death.

Life

He was the eldest son of the Brunswick duke Albert the Tall and his second wife Adelaide, daughter of Margrave Boniface II of Montferrat. His father had ruled the Duchy of Brunswick-Lüneburg jointly with his brother John, until both divided their territory in 1269. Albert went on to rule the Principality of Wolfenbüttel until his death in 1279. Henry first ruled the Brunswick principality of Wolfenbüttel jointly with his younger brothers Albert II the Fat and William. In 1291 they again divided the territory; Henry received the part that came to be known as Principality of Grubenhagen. It included the cities of Einbeck, half of Hamelin, Clausthal, Amelungsborn, Duderstadt, Herzberg, and Osterode. Henry quarreled with his brother Albert, who had received the Principality of Göttingen, over the remaining belittled areas around Brunswick and Wolfenbüttel, 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), married Frederick, Count of Beichlingen Otto (born c. 1283, died in or before 1309) Albert (born c. 1284, died after 1341), joined the Teutonic Order Adelaide (1285–1320), married King Henry 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), married Andronikos III Palaiologos, Roman Emperor Conrad (c. 1294 – c. 1320) Mechtild (c. 1295 – between 24 October 1333 and 14 March 1344), married John II 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 at Einbeck

Ancestry

16. Henry the Lion
16. Henry the Lion
8. William of Winchester, Lord of Lüneburg
17. Matilda of England
4. Otto I, Duke of Brunswick-Lüneburg
18. Valdemar I of Denmark
9. Helena of Denmark
19. Sophia of Minsk
2. Albert I, Duke of Brunswick-Lüneburg
20. Otto I, Margrave of Brandenburg
10. Albert II, Margrave of Brandenburg
21. Ada of Holland
5. Matilda of Brandenburg
22. Conrad II, Margrave of Lusatia
11. Matilda of Lusatia
23. Elisabeth of Greater Poland
1. Henry I, Duke of Brunswick-Lüneburg
24. Boniface I, Marquess of Montferrat
12. William VI, Marquess of Montferrat
25. Helena del Bosco
6. Boniface II, Marquess of Montferrat
26. Bonifacio di Clavesana, Count of Cortemiglia
13. Berta di Clavesana
3. Adelheid of Montferrat
28. Thomas I, Count of Savoy
14. Amadeus IV, Count of Savoy
29. Margaret of Geneva
7. Margaret of Savoy
30. Hugh III, Duke of Burgundy
15. Marguerite of Burgundy
31. Beatrice of Albon
16. Henry the Lion
8. William of Winchester, Lord of Lüneburg
17. Matilda of England
4. Otto I, Duke of Brunswick-Lüneburg
18. Valdemar I of Denmark
9. Helena of Denmark
19. Sophia of Minsk
2. Albert I, Duke of Brunswick-Lüneburg
20. Otto I, Margrave of Brandenburg
10. Albert II, Margrave of Brandenburg
21. Ada of Holland
5. Matilda of Brandenburg
22. Conrad II, Margrave of Lusatia
11. Matilda of Lusatia
23. Elisabeth of Greater Poland
1. Henry I, Duke of Brunswick-Lüneburg
24. Boniface I, Marquess of Montferrat
12. William VI, Marquess of Montferrat
25. Helena del Bosco
6. Boniface II, Marquess of Montferrat
26. Bonifacio di Clavesana, Count of Cortemiglia
13. Berta di Clavesana
3. Adelheid of Montferrat
28. Thomas I, Count of Savoy
14. Amadeus IV, Count of Savoy
29. Margaret of Geneva
7. Margaret of Savoy
30. Hugh III, Duke of Burgundy
15. Marguerite of Burgundy
31. Beatrice of Albon
8. William of Winchester, Lord of Lüneburg
17. Matilda of England
4. Otto I, Duke of Brunswick-Lüneburg
18. Valdemar I of Denmark
9. Helena of Denmark
19. Sophia of Minsk
2. Albert I, Duke of Brunswick-Lüneburg
20. Otto I, Margrave of Brandenburg
10. Albert II, Margrave of Brandenburg
21. Ada of Holland
5. Matilda of Brandenburg
22. Conrad II, Margrave of Lusatia
11. Matilda of Lusatia
23. Elisabeth of Greater Poland
1. Henry I, Duke of Brunswick-Lüneburg
24. Boniface I, Marquess of Montferrat
12. William VI, Marquess of Montferrat
25. Helena del Bosco
6. Boniface II, Marquess of Montferrat
26. Bonifacio di Clavesana, Count of Cortemiglia
13. Berta di Clavesana
3. Adelheid of Montferrat
28. Thomas I, Count of Savoy
14. Amadeus IV, Count of Savoy
29. Margaret of Geneva
7. Margaret of Savoy
30. Hugh III, Duke of Burgundy
15. Marguerite of Burgundy
31. Beatrice of Albon

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