Nielsen Hayden genealogy
Descendants of Aron of Western Bulgaria
- 976Father: Nicholas of Bulgaria
Mother: Ripsimija
Aron of Western Bulgaria ( - 14 Jun 976 Dupnitsa, Bulgaria)
   └─ Iwan Wladislav, Tsar of Western Bulgaria (Abt 975 - Feb 1018 Dyrrhachium, Albania)
    Marija (Abt 975 - Aft 1029)
       ├─ Trajan, Khan of Western Bulgaria
       │
       │     + Andronikos Doukas ( - 14 Oct 1077)
       └─ Alusian, Tsar of Bulgaria (Abt 995 - ??)
       
           └─ (Unknown daughter of Alusian of Bulgaria) ( - Bef 1065) =>
            + Romanos IV Diogenes, Emperor of Byzantium (Abt 1022 - 1072)