Nielsen Hayden genealogy
Descendants of Welf I of Bavaria
- 1101Father: Albert Azzo II (997 - 20 Aug 1097)
Mother: Kunigunde of Altdorf (Abt 1020 - Bef 31 Mar 1055)
Welf I of Bavaria ( - 6 Nov 1101 Paphos, Cyprus)
Judith of Flanders (Abt 1033 - 5 Mar 1094 Weingarten Abbey, Ravensburg, Upper Swabia, Germany)(m. 1071)
   └─ Henry IX of Bavaria (1074 - 13 Dec 1126 Ravensburg, Upper Swabia, Germany)
    Wulfhilde of Saxony (Abt 1075 - 29 Dec 1126 Weingarten Abbey, Ravensburg, Upper Swabia, Germany)(m. Abt 1100)
       ├─ Matilda of Bavaria ( - 16 Feb 1183)
       │ Gebhard III of Sulzbach (Abt 1114 - 28 Oct 1188)(m. 1129)
       │    │ + Dietrich IV (Abt 1130 - 1172)
       │     + Rapoto I von Ortenburg (Abt 1106 - 26 Aug 1186)
       ├─ Wulfhild von Bayern ( - Aft 8 May 1160)
       │ Rudolf von Bregenz ( - Between 27 Apr 1160 and 28 Apr 1160)
       │     + Hugo II von Tübingen ( - 18 Dec 1182)(m. Bef 1 May 1171)
       ├─ Heinrich of Saxony (Abt 1100 - 20 Oct 1139)
       │ Gertrud von Süpplinburg (18 Apr 1115 - Abt 18 Apr 1143)(m. 29 May 1127)
       │    └─ Heinrich of Saxony (1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany) =>
       │     + Ida von Bliescastel
       │     + Matilda of England (1156 London, England - 13 Jul 1189)(m. Between 1167 and 1168)
       └─ Judith of Bavaria (19 May 1100 - Aft 22 Feb 1130 bur.Waldburg, Heiligen Forst, Alsace)
        Frederick II von Hohenstaufen (1090 - 4 Apr 1147)(m. 1121)
           ├─ Frederick Barbarossa, Holy Roman Emperor (1122 - 10 Jun 1190 Saleph River, Cilicia, Anatolia) =>
           │ + Beatrice of Burgundy (Abt 1144 - 15 Nov 1184 Jouhe, Jura, France)(m. 9 Jun 1156 Würzburg, Germany)
            + Matthias I of Lorraine (Abt 1119 - 13 May 1176)(m. Abt 1138)