Helene married Friedrich III before 10 Apr 1280. Friedrich (son of Konrad I and ? UNKNOWN) died on 14 Aug 1297. [Group Sheet] [Family Chart]
Albrecht married Helen Of BRUNSWICK in 1247/8. Helen (daughter of Otho The PUER and MATHILDA) was born on 18 Mar 1223; died on 6 Sep 1273. [Group Sheet] [Family Chart]