Children |
| 1. Elizabeth of Brunswick-Lüneburg, d. 1266 |
+ | 2. Helene of Brunswick-Lüneburg, b. 1231, d. 6 Sep 1273 (Age 42 years) |
| 3. Albert (Albrecht)'the Tall (der Große)', Duke of Brunswick-Wolfenbüttel, b. 1236, d. 15 Aug 1279 (Age 43 years) |
+ | 4. John (Johann), 2nd Duke of Brunswick-Lüneburg, b. 1242, d. 1277 (Age 35 years) |
+ | 5. Adelaide (Adelheid) of Brunswick-Lüneburg, b. Bef 1249, d. 1274 (Age ~ 24 years) |
| 6. Matilda of Brunswick-Lüneburg, d. 25 Oct/1 Dec 1297, Gernrode?, Eichsfeld, Thuringia, Germany |
+ | 7. Agnes of Brunswick-Lüneburg, b. Bef 1250 |
| 8. Otto of Brunswick-Lüneburg, Bishop of Hildesheim, d. 1279 |
| 9. Conrad of Brunswick and Lunenburg, Prince-Bishop of Verden, d. 1300 |
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