Nielsen Hayden genealogy
Ancestors of Constance of Sicily
1249 - 1301 (52 years) ┌── Heinrich VI, Holy Roman Emperor (Nov 1165 - 28 Sep 1197 Messina, Sicily)
│ (m. 27 Jan 1186 Milan, Lombardy, Italy) =>
┌── Friedrich II, Holy Roman Emperor (26 Dec 1194 - 13 Dec 1250)
│ └── Constance of Sicily ( - 27 Nov 1198)(m. 27 Jan 1186 Milan, Lombardy, Italy) =>
│
┌── Manfredo, King of Sicily (1232 - 26 Feb 1266)(m. Abt 1248)
│ │
│ │ ┌── Manfredo Lancia (Abt 1170 - 1215)
│ └── Bianca Lancia (Abt 1212 - ??)
│
Constance of Sicily (1249 - 1301 Barcelona, Catalonia, Spain)
│
│ ┌── Amedee of Savoy (1197 - 24 Jun 1253 Montmelian, Savoie, Rhône-Alpes, France)(m. 1222)
│ │ └── Margaret of Geneva ( - 13 Apr 1236)(m. May 1195) =>
│ │
└── Beatrice of Savoy (4 Mar 1223 - Bef 10 May 1259)(m. Abt 1248)
│
│ ┌── Hugh III of Burgundy (Abt 1148 - 25 Aug 1192 Tyre)
│ │ (m. 1 Sep 1183 Saint-Gilles, Languedoc, France) =>
└── Marguerite of Burgundy (1192 - 1242)(m. 1222)
└── Beatrice of Albon (1161 - 15 Dec 1228 Château de Vizille, Vizille, Isère, France)
(m. 1 Sep 1183 Saint-Gilles, Languedoc, France) =>