Cäcilie von Brandenburg

CÄCILIE von Brandenburg

• Daughter of FRIEDRICH I Elector of Brandenburg & his wife Elisabeth von Bayern-Landshu
• Noble family House of Hohenzollern
• Born: c.  1405
• Died: 4 January 1449
• Buried: Brunswick Cathedral
• Cecilia married on 30 May 1423 in Berlin Duke William III of Brunswick-Lüneburg (1392–1482). The marriage had been arranged by Emperor Sigsmund, like that of her sister Magdalena with Duke Frederick II of Brunswick-Lüneburg. Both couples had been engaged on 3 March 1420. Duke William III of Brunswick-Lüneburg married firstly (Berlin 30 May 1423) CÄCILIE von Brandenburg, daughter of FRIEDRICH I Elector of Brandenburg & his wife Elisabeth von Bayern-Landshut (-4 Jan 1449, bur Braunschweig Cathedral).

Project MedLands, Brunkswick

WILHELM von Braunschweig-Wolfenbüttel (1392-Braunschweig 25 Jul 1482, bur Braunschweig Cathedral). Botho’s Chronicon Brunsvicensium Picturatum names “Wilhelm” as the son of “Hertoghe Hinrick, Hertoghe Magnus sone to Brunswick unde Lunenborch” and his first wife[380]. He succeeded his father in 1416 as WILHELM I "der Ältere" Herzog von Braunschweig und Lüneburg in Wolfenbüttel. The Notæ Sancti Blasii record the death "1482 die Iacobi" of "princeps dominus Wilhelmus in Brunswik et Lunenburg dux"[381]. m firstly (Berlin 30 May 1423) CÄCILIE von Brandenburg, daughter of FRIEDRICH I Elector of Brandenburg & his wife Elisabeth von Bayern-Landshut (-4 Jan 1449, bur Braunschweig Cathedral). Botho’s Chronicon Brunsvicensium Picturatum names “Cecilia”, who married “Hertoghen Wilhelm to Brunswick unde Lunenborch”, second of the five daughters of “Marggreve Frederick to Brandenborch unde Borggreve to Nurenbarge” and his wife[382]. The Notæ Sancti Blasii name "Cecilia de Brandenburg" as wife of "princeps dominus Wilhelmus in Brunswik et Lunenburg dux"[383]. m secondly (1466) as her second husband, MECHTILD von Holstein-Schauenburg, widow of BERNHARD II Herzog von Braunschweig in Lüneburg, daughter of OTTO II Graf von Holstein-Schauenburg & his wife Elisabeth von Honstein (-Neustadt am Rübenberge 22 Jul 1468, bur Braunschweig Cathedral). The Notæ Sancti Blasii name "Mechildis de Holstein et Schounborg" as second wife of "princeps dominus Wilhelmus in Brunswik et Lunenburg dux"[384]. Botho’s Chronicon Brunsvicensium Picturatum records that “de olde Hertoghe Wilhelm, Hertoghen Hinrikes sone to Brunswick unde to Lunenborch” married secondly “Metildam, eynes Greven dochter to Schomborch” who died in childbirth[385]. Mistress (1): CÄCILIA, daughter of ---.

Wilhelm I & his first wife Cecilia had two children:

• a) WILHELM von Braunschweig-Wolfenbüttel (-7 Jul 1503, bur Münden St Blasius). Botho’s Chronicon Brunsvicensium Picturatum names “Wilhelm unde Frederick” as the two sons of “de olde Hertoghe Wilhelm, Hertoghen Hinrikes sone to Brunswick unde to Lunenborch” and his wife “Ceciliam...to Brandenborch”[386]. He succeeded his father in 1482 as WILHELM II "der Jungere" Herzog von Braunschweig-Wolfenbüttel.
• b) FRIEDRICH von Braunschweig-Wolfenbüttel Münden 6 Mar 1495, bur Münden St Blasius). Botho’s Chronicon Brunsvicensium Picturatum names “Wilhelm unde Frederick” as the two sons of “de olde Hertoghe Wilhelm, Hertoghen Hinrikes sone to Brunswick unde to Lunenborch” and his wife “Ceciliam...to Brandenborch”[387]. He succeeded in 1482 as FRIEDRICH II Herzog von Braunschweig-Calenberg. m firstly (Munich Feb 1463, divorced 1467) as her second husband, ANNA von Braunschweig-Grubenhagen, widow of ALBRECHT III "der Fromme" Duke of Bavaria-Munich, daughter of ERICH Herzog von Braunschweig-Grubenhagen & his wife Elisabeth von Braunschweig-Göttingen (1415-Nannhofen 9 Oct 1474, bur Andechs). Botho’s Chronicon Brunsvicensium Picturatum names “Anna” fifth of the five daughters of “Hertoghe Ereke, Hertoghen Albrechtes sone to Brunswick, ein Here to Embeke” and his wife, who married “Hertoghen Albrecht to Beyeren” and secondly “Hertoghen Frederick, des olden Hertoghen Wilhelmes sone to Brunswick unde Lunenborch”[388]. m secondly (16 Nov 1483) MARGARETA von Rietberg, daughter of KONRAD [V] Graf von Rietberg & his wife --- (-[4 Jan 1533/6 Jun 1535]). Botho’s Chronicon Brunsvicensium Picturatum records that “Hertoghe Frederick, Hertoghe Wilhelmes sone to Brunswick unde to Lunenborch” married secondly “Margaretam des Greven dochter van Retbarge”[389].

Wilhelm I & his second wife MECHTILD had one child:

• c) OTTO von Braunschweig (Neustadt am Rübenberge [20 Jul 1468]-[22 Jul] 1471, bur Kloster Obernkirchen). Botho’s Chronicon Brunsvicensium Picturatum records that “de olde Hertoghe Wilhelm, Hertoghen Hinrikes sone to Brunswick unde to Lunenborch” married secondly “Metildam, eynes Greven dochter to Schomborch” who died in childbirth giving birth to their son “Otto” who died young[390].
  

Wilhelm I had one illegitimate child by Mistress (1):

• d) SOPHIA . A nun in Marienau
  

Source Project MedLands, Brunswick - http://fmg.ac/Projects/MedLands/BRUNSWICK.htm#Katharinadied1563

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