IV married Countess of Northumbria Judith (Fausta) about 1071 in Bavaria. Judith (daughter of Baldwin V "The Pious", Count of Flanders and Adèle Capet, Princess of France) was born about 1040 in Flanders, France; died on 4 Mar 1094 in Flanders, France. [Group Sheet] [Family Chart]
I married Wulfhilda von Saxony about 1099 in Germany. Wulfhilda (daughter of Duke of Saxony Magnus and Princess of Hungary Sophia (Zsofia)) was born about 1075 in Saxony, Germany; died on 29 Dec 1126. [Group Sheet] [Family Chart]
Judith married Duke of Swabia Frederick II von Hohenstaufen about 1120 in Germany. Frederick (son of Duke of Swabia Frederick I von Büren and Princess of Germany Agnes) was born in 1090 in Swabia, Germany; died on 6 Apr 1147. [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]