Boyd and Mahler (Mehler)

Ernest I Duke of Brunswick-Grubenhagen

Ernest I Duke of Brunswick-Grubenhagen

Male

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Generation: 1

  1. 1.  Ernest I Duke of Brunswick-Grubenhagen (son of Henry I Duke of Brunswick-Grubenhagen and Agnes of Meissen).

    Family/Spouse: Adelheid of Everstein-Polle. [Group Sheet] [Family Chart]

    Children:
    1. Albert I Duke of Brunswick-Grubenhagen

Generation: 2

  1. 2.  Henry I Duke of Brunswick-Grubenhagen (son of Albert I Duke of Brunswick-Lüneburg and Adelheid of Montferrat).

    Henry married Agnes of Meissen. [Group Sheet] [Family Chart]


  2. 3.  Agnes of Meissen (daughter of Albert II Margrave of Meissen and Margaret of Sicily).
    Children:
    1. 1. Ernest I Duke of Brunswick-Grubenhagen
    2. Mechtild of Brunswick-Grubenhagen


Generation: 3

  1. 4.  Albert I Duke of Brunswick-Lüneburg (son of Otto I Duke of Brunswick-Lüneburg and Matilda of Brandenburg).

    Albert married Adelheid of Montferrat. [Group Sheet] [Family Chart]


  2. 5.  Adelheid of Montferrat (daughter of Boniface II Marquess of Montferrat and Margaret of Savoy).
    Children:
    1. 2. Henry I Duke of Brunswick-Grubenhagen
    2. Albert II Duke of Brunswick-Lüneburg

  3. 6.  Albert II Margrave of Meissen (son of Henry III Margrave of Meissen and Constantia of Austria).

    Albert married Margaret of Sicily. [Group Sheet] [Family Chart]


  4. 7.  Margaret of Sicily (daughter of Holy Roman Emperor Frederick II and Isabella of England).
    Children:
    1. 3. Agnes of Meissen
    2. Frederick I Margrave of Meissen


Generation: 4

  1. 8.  Otto I Duke of Brunswick-Lüneburg (son of William of Winchester Lord of Lüneburg and Helena of Denmark).

    Otto married Matilda of Brandenburg. [Group Sheet] [Family Chart]


  2. 9.  Matilda of Brandenburg (daughter of Albert II Margrave of Brandenburg and Matilda of Lusatia).
    Children:
    1. Adelheid of Brunswick-Lüneburg
    2. Helene of Brunswick-Lüneburg
    3. Agnes of Brunswick-Lüneburg
    4. 4. Albert I Duke of Brunswick-Lüneburg

  3. 10.  Boniface II Marquess of Montferrat (son of William VI Marquess of Montferrat and Berta di Clavesana).

    Boniface married Margaret of Savoy. [Group Sheet] [Family Chart]


  4. 11.  Margaret of Savoy
    Children:
    1. 5. Adelheid of Montferrat

  5. 12.  Henry III Margrave of Meissen (son of Dietrich I Margrave of Meissen and Jutta of Thuringia).

    Henry married Constantia of Austria. [Group Sheet] [Family Chart]


  6. 13.  Constantia of Austria (daughter of Leopold VI Duke of Austria and Theodora Angelina).
    Children:
    1. 6. Albert II Margrave of Meissen

  7. 14.  Holy Roman Emperor Frederick II (son of Holy Roman Emperor Henry VI and Constance Queen of Sicily).

    Holy married Isabella of England. [Group Sheet] [Family Chart]


  8. 15.  Isabella of England (daughter of John Lackland Plantagenet King of England and Isabella of Angoulême).
    Children:
    1. 7. Margaret of Sicily



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