1250 – 25 August 1298, near Aken) was a son of Duke Albert I of Saxony and his third wife Helen of Brunswick and Lunenburg, a daughter of Otto the Child.
In 1269, 1272 and 1282 the brothers gradually divided their governing competences within the three territorially unconnected Saxon areas (one called Land of Hadeln around Otterndorf, another around Lauenburg upon Elbe and the third around Wittenberg), thus preparing a partition.
In 1288 Albert II applied to King Rudolph I for the enfeoffment of his son and heir Duke Rudolf I with the Electorate of Saxony, which ensued a long lasting dispute with the eager clan of the House of Wettin.
On 27 April 1292 Albert II, with his nephews still minor, wielded the Saxon electoral vote, electing Adolf of Germany.
The last document, mentioning the joint government of Albert II with his nephews as Saxon fellow dukes dates back to 1295.