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]
Philip married Princess of Byzantine Empire Irene Angelina on 25 May 1197. Irene (daughter of Emperor of Byzantine Empire Isaac II Angelos and Irena Comnenus) was born in 1184 in Constantinople, Turkey; died on 27 Aug 1208. [Group Sheet] [Family Chart]
Alix married Duke of Burgundy III Hugh about 1165 in Lorraine, France. III (son of Duke of Burgundy II Eudes and Marie de Champagne) was born about 1148 in of Burgundy, France; died on 25 Aug 1192 in Tyrus, Jerusalem. [Group Sheet] [Family Chart]