Nielsen Hayden genealogy
Descendants of Theodora Comnena
1096 -Father: Alexios I Komnenos, Emperor of Byzantium (Between 1048 and 1057 - 15 Aug 1118)
Mother: Irene Doukaina (Abt 1066 - 19 Feb 1123)
Theodora Comnena (15 Jan 1096 Constantinople - ??)
Constantius Angelius ( - Aft Jun 1166)(m. Abt 1120)
   ├─ Isaakios Angelos
   │
   │    └─ (Unknown) Angelina
   │     Basileios Batatzes ( - Abt 1193)(m. Abt 1189)
   │        └─ Ioannes III Doukas, Emperor of Nicaea (Abt 1192 -
   │         3 Nov 1254 Nymphaion, now Kemelpasa, Izmir, Turkey) =>
   │         3 Nov 1254 Nymphaion, now Kemelpasa, Izmir, Turkey) =>
   │         + Eirene Doukaina Komnene Laskarina (Abt 1200 - 1239)(m. 1212)
   └─ Andronikos Doukas Angelos (Abt 1122 - Aft 1185)
    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)
       │     (m. 1203)
       ├─ Alexios III Komnenos Angelos, Emperor of Byzantium (Aft 1155 - Aft 1211)
       │ Euphrosyne Doukaina Kamaterina (Abt 1155 - Between 1210 and 1211)(m. 1169)
       │     + Theodoros I Komnenos Laskaris, Emperor in Nicea (Abt 1175 - Aug 1222)(m. 1199)
       └─ Isaac II Angelos, Emperor of Byzantium (Constantinople;Sep 1156 - Jan 1204)
        (First wife of Isaac II Angelos) ( - Bef 1185)
        :   └─ Irene Angelina (Abt 1181 Constantinople - 27 Aug 1208 Hohenstaufen Castle, Bavaria) =>
        :    + Philip II, King of Germany (1177 - 21 Jun 1208 Bamberg, Bayern, Germany)(m. 25 May 1197)
        + Margaret of Hungary (1175 - Aft 1222)