II Albrecht
II was born about 1169 in Brandenburg, Prussia.

 Margravine of Lower Lusatia Mathilde
Margravine of Lower Lusatia was born about 1184 in Groitzsch, Leipzig, Saxony.  She died in 1255.

 Margravine of Brandenburg Mathilde
Margravine of Brandenburg was born about 1209 in Brandenburg, Prussia.  She died on June 10th, 1261.

 III Otto
III was born about 1213 in Brandenburg, Prussia.  He died on October 9th, 1267.