Hildegarde married Frederick von Büren about 1045 in Germany. Frederick (son of Pfalzgraf of Swabia Frederick von Büren and Adelheid von Filsgau) was born about 1020 in Germany. [Group Sheet] [Family Chart]
Frederick married Princess of Germany Agnes about 1089 in Hohenstauffen, Germany. Agnes (daughter of Holy Roman Emperor IV Heinrich and Bertha de Savoy) was born in 1072 in of Klosterneuburg, Austria; died on 24 Sep 1143; was buried in Klosterneuburg, Austria. [Group Sheet] [Family Chart]
Frederick married of Bavaria Judith about 1120 in Germany. Judith (daughter of Duke of Bavaria I Heinrich and Wulfhilda von Saxony) was born about 1100 in Bavaria; died on 22 Feb 1130. [Group Sheet] [Family Chart]
Frederick married Countess of Burgundy I Beatrice on 9 Jun 1156 in Würzburg, Bavaria, Germany. I (daughter of Count of Burgundy and Macon III Rainald and of Lorraine Agathe) was born in 1143; died on 15 Nov 1184. [Group Sheet] [Family Chart]
Bertha married Duke of Lorraine I Matthias about 1110 in France. I (son of Duke of Lorraine I Simon and Adelaide de Leuven) was born in 1119 in Lorraine, France; died on 13 May 1176. [Group Sheet] [Family Chart]