Note that it is unclear whether Albrecht is the son of his father's first or second wife (the Wikipedia authors have no doubts it was the 2nd).
|Offspring of Albrecht II. von Brandenburg and Mechthild von Lausitz (c1185-1255)|
|Johann I. von Brandenburg (c1213-1266)||1213||4 April 1266|| Sophie of Denmark (1217-1247)|
Jutta von Sachsen (c1228-1287)
|Otto III. von Brandenburg (1215-1267)||1215||9 October 1267|| Beatrix of Bohemia (c1231-1290)|
|Mechthild von Brandenburg (c1210-1261)||1210||10 June 1261|| Otto von Braunschweig-Lüneburg (c1204-1252)|
|Elisabeth von Brandenburg(c1206-c1231)|