"Albert the Tall (Latin: Albertus Longus, German: Albrecht der Große; 1236 – 15 August 1279), a member of the House of Welf, was Duke of Brunswick-Lüneburg ...
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from 1252 and the first ruler of the newly created Principality of Brunswick-Wolfenbüttel from 1269 until his death." - (en.wikipedia.org 16.10.2020)