ERNST I Herzog von Braunschweig-Grubenhagen zu Einbeck

• Son of Henry I "the Admirable" duke of Brunswick-Grubenhagen and Agnes of Meissen
• Ernst I. von Braunschweig-Grubenhagen (* around 1297 ; † March 11, 1361 ) was Prince of Braunschweig-Grubenhagen

Project MedLands, BRUNSWICK

ERNST von Braunschweig, son of HEINRICH I Herzog von Braunschweig und Lüneburg in Grubenhagen und Salzderhelden & his wife Agnes von Meissen ([1297]-11 Mar 1361, bur Einbeck St Alexander). Botho’s Chronicon Brunsvicensium Picturatum names “Ernest” fourth of the four sons of “Hertoghe Hinrick...Hertoghen Albrechtes sone to Brunswick” and his wife[257]. A charter of Duke Heinrich dated 21 Sep 1309 names three sons “Henricus, Ernestus, Wilhelmus” and three daughters “Alsine, Alheidis, Facie”[258]. He succeeded in 1325 as ERNST I Herzog von Braunschweig-Grubenhagen zu Einbeck, 1327 zu Everstein, 1334 zu Osterode, 1335 zu Hameln. “Johannes hertoghen Hinrikes sone von Brunswich...domhere to Megenze unde to Munstere” renounced his father’s inheritance in favour of “Hinrich, Ernest un Wilhelm unse brodere” by charter dated 17 Mar 1325[259]. “Hertoghe Ernest van Brunswich” mortgaged a third part of “des hufes Gheueldehusen” to “Hertoghen Hinriche von Brunswich unsem brotere un...Hedewighe siner husvrowen” by charter dated 7 Jan 1334[260]. “Ernest Hertoghe to Brunwswik unde...Alheyd use...husvrowe” granted property to “useme brodere hertoghen Wilhelme..” by charter dated 2 Mar 1340[261]. married ([10 May 1335/9 Jun 1336]) ADELHEID von Everstein, daughter of HEINRICH [II] Graf von Everstein & his wife --- (-after 29 Sep 1373). Botho’s Chronicon Brunsvicensium Picturatum records that “Hertoghe Ernest, Hertoghen Hinrikes sone to Brunswick...Here to Embeke unde to dem Grubenhagen” married “Angenese des Greven Hinrikes dochter to Eversteyn”[262]. “Ernest Hertoghe to Brunwswik unde...Alheyd use...husvrowe” granted property to “useme brodere hertoghen Wilhelme..” by charter dated 2 Mar 1340[263].

Ernst I & his wife ADELHEID von Everstein had nine children:

• 1. OTTO von Braunschweig ([1337]-young). Botho’s Chronicon Brunsvicensium Picturatum names “Otten” who died “in der joget” (named first) as one of the four sons of “Hertoghe Ernest, Hertoghen Hinrikes sone to Brunswick...Here to Embeke unde to dem Grubenhagen” and his wife “Angenese des Greven Hinrikes dochter to Eversteyn”[264].
• 2. ALBRECHT von Braunschweig ([1339]-Salzderhelden [11 Aug/22 Sep] 1383, bur Einbeck St Alexander). Botho’s Chronicon Brunsvicensium Picturatum names “Albrecht” (named third) as one of the four sons of “Hertoghe Ernest, Hertoghen Hinrikes sone to Brunswick...Here to Embeke unde to dem Grubenhagen” and his wife “Angenese des Greven Hinrikes dochter to Eversteyn”[265]. He succeeded in 1359 as ALBRECHT I Herzog von Braunschweig-Salzderhelden, succeeded his father in 1361 jointly with his brother Johann II in Grubenhagen und Einbeck. Married (before 17 Aug 1372) AGNES von Braunschweig, daughter of MAGNUS II "Torquatus/mit der Kette" Herzog von Braunschweig-Lüneburg & his wife Katharina von Anhalt (-21 Mar 1410). The primary source which confirms her parentage and marriage has not been identified.

Albrecht I & his wife AGNES von Braunschweig had one child:

• a) ERICH von Braunschweig ([1380]-28 May 1427, bur Einbeck St Alexander). Engelhusius’s Genealogia ducum Brunswicensium records that “Albertus” had “filium Ericum” who left “tres filios Henricum, Ernestum et Albertum et filias”[266]. He succeeded his father in 1383 as ERICH Herzog von Braunschweig-Grubenhagen.
  

• 3. JOHANN von Braunschweig (-18 Jan 1401). He succeeded his father in 1361 as JOHANN II Joint Herzog von Braunschweig-Grubenhagen. Canon at Hildesheim cathedral until 1362, resigned. Canon and Franciscan monk at Einbeck until 1366. Canon of St Viktor at Mainz 1366. Carthusian prior 1378/1401.
• 4. ADELHEID von Braunschweig ([1341]-[3 May 1406]). The primary source which confirms her parentage and marriage has not been identified. Married ([1362]%29 as his second wife, BOGISLAW V Duke of Pomerania in Hinterpommern, son of WARTISLAW IV Duke of Pomerania in Wolgast und Hinterpommern & his wife Elisabeth von Lindau-Ruppin ([1318/19]-7 Dec 1373).
• 5. AGNES von Braunschweig ([1342]-after 5 Nov 1394). Engelhusius’s Genealogia ducum Brunswicensium records that the (unnamed) daughter of “Ernestus” married “Ulricus comes de Honsteyn”[267]. Married (before 1362) ULRICH Graf von Honstein in Kelbra, son of --- (-after 11 Sep 1414).
• 6. ANNA von Braunschweig ([1343]-before 1409). The primary source which confirms her parentage and marriage has not been identified. m (before 5 Jan 1364) HEINRICH [VIII] Graf von Honstein in Kelbra, son of --- (-[1408/09]).
• 7. ERNST von Braunschweig ([1346]-[13 Jul 1400/21 May 1402]). Botho’s Chronicon Brunsvicensium Picturatum names “Ernst” who was “ein Provest to Embeke” (named second) as one of the four sons of “Hertoghe Ernest, Hertoghen Hinrikes sone to Brunswick...Here to Embeke unde to dem Grubenhagen” and his wife “Angenese des Greven Hinrikes dochter to Eversteyn”[268]. Canon at Hildesheim cathedral. Abbot of Corvey 1369, deposed. Provost of St Alexander at Einbeck 1372. He succeeded in 1384 as ERNST II Herzog von Braunschweig-Grubenhagen in Herzberg.
• 8. FRIEDRICH von Braunschweig ([1350]-1421, bur Einbeck). Botho’s Chronicon Brunsvicensium Picturatum names “Frederick” (named fourth) as one of the four sons of “Hertoghe Ernest, Hertoghen Hinrikes sone to Brunswick...Here to Embeke unde to dem Grubenhagen” and his wife “Angenese des Greven Hinrikes dochter to Eversteyn”[269]. He succeeded in 1384 as FRIEDRICH Herzog von Braunschweig-Grubenhagen in Herzberg, in Salzderhelden 1397, in Herzberg & Osterode 1402. Married ADELHEID von Anhalt, daughter of --- (-after 29 Sep 1405). She has not been identified in the Anhalt family. Botho’s Chronicon Brunsvicensium Picturatum records that “Hertoghe Frederick, Hertoghen Ernestes sone...ein Here to Embeke unde to den Grubenhagen, unde...ein Here to Osterode” married “Elizabeth, des Heren dochter van Homborch des Banre Heren”[270]. The reliability of this record is unknown, given the numerous inaccuracies in Botho’s Chronicon. Friedrich’s daughter-in-law’s first marriage to Heinrich von Homburg should be noted and may have resulted in confusion.

Friedrich & his wife ADELHEID von Anhalt had one child:

• a) OTTO von Braunschweig ([1396]-[6 Jan/16 Apr] 1452). Botho’s Chronicon Brunsvicensium Picturatum names “Otto”, who succeeded his father, as son of “Hertoghe Frederick, Hertoghen Ernestes sone...ein Here to Embeke unde to den Grubenhagen, unde...ein Here to Osterode” and his wife[271]. Custos of Halberstadt cathedral 1403. He succeeded in 1404 as OTTO II Herzog von Braunschweig-Grubenhagen in Herzberg. Provost of St Alexander at Einbeck 1408. m ([18 Jul/22 Sep] 1414) SCHONETTE von Nassau, widow of HEINRICH von Homburg, daughter of JOHANN I Graf von Nassau-Weilburg & his second wife Johanna von Saarbrücken (-Hildesheim 25 Apr 1436, bur Hildesheim cathedral). Botho’s Chronicon Brunsvicensium Picturatum records that “Hertoghe Otto, Hertoghen Frederikes sone to Brunswick, eyn Here to Embeke unde Osterode” married “eins Greven dochter van Nassaw...Schoneta”, widow of “des lesten Greven unde Heren Hinrikes to Homborch”, but was childless by her[272].
  

Otto II had one illegitimate child by an unknown mistress:

• i) OTTO "Ottonis" . Botho’s Chronicon Brunsvicensium Picturatum records that “Hertoghe Otto, Hertoghen Frederikes sone to Brunswick, eyn Here to Embeke unde Osterode” had a bastard son “ein grot Prelat in Brunswick...Her Otto”[273]. Priest at St Katharina 1444/63. Canon of St Blasius at Braunschweig 1444/59.
  

• 9. ANNA von Braunschweig ([1360]-after 10 May 1437). Engelhusius’s Genealogia ducum Brunswicensium records that the (unnamed) “alia filia” of “Ernestus” was “abbatissa in Osterrode”[274]. Nun 1394. Abbess of St Jacob and St Maria at Osterode 1397-before 28 Oct 1404. Nun at Osterode 1405/37.

http://de.wikipedia.org/wiki/Ernst_I._%28Braunschweig-Grubenhagen%29 Wikipedia]

M Ernst van Brunswijk GrubenhagenPrint Family Tree(Ernst Brunswijk Grubenhagen)

Born about 1300 Deceased 11 March 1361 , age at death: possibly 61 years old

Spouses and children Married in 1335 to Adelheid van Everstein ca 1310-1373 with M Albrecht van Brunswijk Grubenhagen ca 1340-1383 F Adelheid van Brunswijk Grubenhagen ca 1341-1406 M Friedrich van Brunswijk Grubenhagen ca 1350-1421

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