"Albert II, Duke of Brunswick-Lüneburg (German: Albrecht II., Herzog zu Braunschweig-Lüneburg; 1 November 1419 – 15 August 1485), was a Prince of Grubenhagen; he reigned from 1440 until his death in 1485.
Albert II was the third son of Duke Eric I and Elizabeth of Brunswick-Göttingen, a daughter of Otto the Bad, Duke of Brunswick-Göttingen. He was a grandson of the Duke Albert I, was still a minor when his father died on 27 May 1427. His first cousin once removed, Duke Otto the Younger of Grubenhagen-Osterode served until 1440 as regent for Albert II and his brothers Henry III and Ernest II. After 1440, the three brothers, following the Grubenhagen tradition, ruled jointly until Henry died in 1464. After the death of Henry III, Ernest II joined the clergy and Albert II became sole ruler and regent for Henry III´s son, Henry IV." - (en.wikipedia.org 09.10.2020)
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