Nielsen Hayden genealogy
Ancestors of Constance of Sicily
1249 - 1301 (52 years)
┌── Frederick II von Hohenstaufen 
(1090 - 4 Apr 1147)(m. 1121) =>
(1090 - 4 Apr 1147)(m. 1121) => ┌── Frederick Barbarossa, Holy Roman Emperor (1122 - 10 Jun 1190 Saleph River, Cilicia,
│ Anatolia)(m. 9 Jun 1156 Würzburg, Germany)
(1122 - 10 Jun 1190 Saleph River, Cilicia, │ Anatolia)(m. 9 Jun 1156 Würzburg, Germany)
│ └── Judith of Bavaria (19 May 1100 -
│ Aft 22 Feb 1130 bur.Waldburg, Heiligen Forst, Alsace)(m. 1121) =>
(19 May 1100 -│ Aft 22 Feb 1130 bur.Waldburg, Heiligen Forst, Alsace)(m. 1121) =>
│
┌── Heinrich VI, Holy Roman Emperor (Nov 1165 - 28 Sep 1197 Messina, Sicily)
(Nov 1165 - 28 Sep 1197 Messina, Sicily) │ (m. 27 Jan 1186 Milan, Lombardy, Italy)
│ │
│ │ ┌── Renaud III of Burgundy (Abt 1093 - 1148) =>
(Abt 1093 - 1148) => │ └── Beatrice of Burgundy (Abt 1144 - 15 Nov 1184 Jouhe, Jura, France)
(Abt 1144 - 15 Nov 1184 Jouhe, Jura, France) │ (m. 9 Jun 1156 Würzburg, Germany)
│ └── Agatha of Lorraine ( - 1147) =>
( - 1147) => │
┌── Friedrich II, Holy Roman Emperor (26 Dec 1194 - 13 Dec 1250)
(26 Dec 1194 - 13 Dec 1250) │ │
│ │ ┌── Roger I d'Hauteville (1031 - 22 Jun 1101)(m. 1090) =>
(1031 - 22 Jun 1101)(m. 1090) => │ │ ┌── Roger II, King of Sicily (Between 22 Dec 1095 and 1097 -
│ │ │ Between 27 Jan 1154 and 26 Feb 1154)(m. 1151)
(Between 22 Dec 1095 and 1097 -│ │ │ Between 27 Jan 1154 and 26 Feb 1154)(m. 1151)
│ │ │ └── Adelaide de Savona (Abt 1075 - 16 Apr 1118)(m. 1090) =>
(Abt 1075 - 16 Apr 1118)(m. 1090) => │ │ │
│ └── Constance of Sicily ( - 27 Nov 1198)(m. 27 Jan 1186 Milan, Lombardy, Italy)
( - 27 Nov 1198)(m. 27 Jan 1186 Milan, Lombardy, Italy) │ │
│ └── Beatrice de Vitry-Réthel (Between 1130 and 1135 - 31 Mar 1185)(m. 1151)
(Between 1130 and 1135 - 31 Mar 1185)(m. 1151) │ └── Beatrix of Namur ( - 1160 Rethel, Ardennes, Champagne-Ardenne, France) =>
( - 1160 Rethel, Ardennes, Champagne-Ardenne, France) => │
┌── Manfredo, King of Sicily (1232 - 26 Feb 1266)(m. Abt 1248)
(1232 - 26 Feb 1266)(m. Abt 1248) │ │
│ │ ┌── Manfredo Lancia (Abt 1170 - 1215)
(Abt 1170 - 1215) │ └── Bianca Lancia (Abt 1212 - ??)
(Abt 1212 - ??) │
Constance of Sicily (1249 - 1301 Barcelona, Catalonia, Spain)
│
│ ┌── Amadeo III (Abt 1095 - 30 Aug 1148 Cyprus)(m. 1123) =>
(Abt 1095 - 30 Aug 1148 Cyprus)(m. 1123) => │ ┌── St. Umberto (Abt 4 Aug 1136 - 4 Mar 1189)(m. Abt 1175)
(Abt 4 Aug 1136 - 4 Mar 1189)(m. Abt 1175) │ │ └── Mahaut of Albon ( - Aft 1145)(m. 1123) =>
( - Aft 1145)(m. 1123) => │ │
│ ┌── Tomaso I (20 Mar 1177 Charbonnieres Castle, Savoy - 20 Jan 1233 Aosta, Savoy)(m. May 1195)
(20 Mar 1177 Charbonnieres Castle, Savoy - 20 Jan 1233 Aosta, Savoy)(m. May 1195) │ │ │
│ │ │ ┌── Gerard I of Burgundy (1125 - 14 Sep 1184)(m. Abt 1160) =>
(1125 - 14 Sep 1184)(m. Abt 1160) => │ │ └── Beatrice de Mâcon ( - Bef 8 Apr 1230 Champagne-et-Fontaine, Aquitaine, France)
( - Bef 8 Apr 1230 Champagne-et-Fontaine, Aquitaine, France) │ │ (m. Abt 1175)
│ │ └── Guyonne de Salins ( - Aft 1200)(m. Abt 1160) =>
( - Aft 1200)(m. Abt 1160) => │ │
│ ┌── Amedee of Savoy (1197 - 24 Jun 1253 Montmelian, Savoie, Rhône-Alpes, France)(m. 1222)
(1197 - 24 Jun 1253 Montmelian, Savoie, Rhône-Alpes, France)(m. 1222) │ │ │
│ │ │ ┌── William I of Geneva (1130 - 25 Jul 1195)(m. Aft 1172)
(1130 - 25 Jul 1195)(m. Aft 1172) │ │ │ │ └── Matilda of Cuiseaux ( - 2 Jul 1137) =>
( - 2 Jul 1137) => │ │ │ │
│ │ └── Margaret of Geneva ( - 13 Apr 1236)(m. May 1195)
( - 13 Apr 1236)(m. May 1195) │ │ │
│ │ │ ┌── Aymon I de Faucigny ( - Aft 1151) =>
( - Aft 1151) => │ │ └── Beatrice de Faucigny ( - Between 1174 and 1179)(m. Aft 1172)
( - Between 1174 and 1179)(m. Aft 1172) │ │
└── Beatrice of Savoy (4 Mar 1223 - Bef 10 May 1259)(m. Abt 1248)
(4 Mar 1223 - Bef 10 May 1259)(m. Abt 1248) │
│ ┌── Hugh II Borel (1085 - Abt 6 Feb 1143)(m. Abt 1115) =>
(1085 - Abt 6 Feb 1143)(m. Abt 1115) => │ ┌── Odo II of Burgundy (1118 - 26 Sep 1162 bur.Abbey of Cîteaux, Dijon, Côte-d'Or, Burgundy,
│ │ France)(m. 1145)
(1118 - 26 Sep 1162 bur.Abbey of Cîteaux, Dijon, Côte-d'Or, Burgundy, │ │ France)(m. 1145)
│ │ └── Mathilde of Mayenne ( - Aft 1162 Beaune, Burgundy, France)(m. Abt 1115) =>
( - Aft 1162 Beaune, Burgundy, France)(m. Abt 1115) => │ │
│ ┌── Hugh III of Burgundy (Abt 1148 - 25 Aug 1192 Tyre)
(Abt 1148 - 25 Aug 1192 Tyre) │ │ (m. 1 Sep 1183 Saint-Gilles, Languedoc, France)
│ │ │
│ │ │ ┌── Thibaut IV of Blois, Champagne, and Troyes (Aft 1090 - 8 Jan 1152 Ligny, Wallonia)
(Aft 1090 - 8 Jan 1152 Ligny, Wallonia) │ │ │ │ (m. 1123) =>
│ │ └── Marie de Champagne (1128 - Abt 1190)(m. 1145)
(1128 - Abt 1190)(m. 1145) │ │ └── Mathilde of Carinthia ( - 13 Dec 1160 Fontevault, Maine-et-Loir, France)
( - 13 Dec 1160 Fontevault, Maine-et-Loir, France) │ │ (m. 1123) =>
│ │
└── Marguerite of Burgundy (1192 - 1242)(m. 1222)
(1192 - 1242)(m. 1222) │
│ ┌── Guigues IX of Albon ( - 28 Jun 1142) =>
( - 28 Jun 1142) => │ ┌── Guigues X of Albon (Abt 1125 - 29 Jul 1162)
(Abt 1125 - 29 Jul 1162) │ │ └── Margaret of Mâcon (Abt 1100 - 1163) =>
(Abt 1100 - 1163) => │ │
└── Beatrice of Albon (1161 - 15 Dec 1228 Château de Vizille, Vizille, Isère, France)
(1161 - 15 Dec 1228 Château de Vizille, Vizille, Isère, France) (m. 1 Sep 1183 Saint-Gilles, Languedoc, France)
└── Béatrix