Nielsen Hayden genealogy
Descendants of Ioannes Angelos
Father: Andronikos Doukas Angelos (Abt 1122 - Aft 1185)
Mother: Euphrosyne Kastamonitissa (Abt 1125 - Aft 1195)
Ioannes Angelos
   └─ Theodora Angela (Between 1180 and 1185 - 23 Jun 1246)
    Leopold VI of Austria (Between 1176 and 1177 - 28 Jul 1230 Safford Cemetery, Graham, Arizona)(m. 1203)
       ├─ Agnes of Austria (19 Feb 1206 - 29 Jul 1226)
       │ Albrecht I of Saxony (Abt 1180 - 8 Nov 1261)(m. 1222)
       │     + Erik IV-VI, King of Denmark (1216 - 10 Aug 1250)(m. 17 Nov 1239)
       ├─ Heinrich of Austria (1208 - 3 Jan 1228)
       │ Agnes von Thüringen (Abt 1206 - Bef 1247)(m. 29 Nov 1225)
       │     + Hermann VI von Baden ( - 4 Oct 1250)(m. 1248)
       └─ Constance of Austria (6 May 1212 - Bef 5 Jun 1243)
        Heinrich von Meissen (Abt 1215 - Bef 8 Feb 1288)(m. 1 May 1234)
            + Margarethe von Hohenstaufen (Abt Feb 1237 - 8 Aug 1270 Frankfurt-am-Main, Germany)(m. 1254)
            + Elisabeth von Orlamünde ( - Between 24 Mar 1333 and 1355)(m. Bef 1 Oct 1290)