Nielsen Hayden genealogy
Descendants of Henri I
Abt 1232 - 1278 (~ 46 years)Father: Hugues III (Abt 1200 - Between 20 Apr 1243 and 4 May 1244)
Mother: Marguerite de Bar
Henri I (Abt 1232 - Between 1 May 1278 and 10 Jul 1278)
Marguerite (m. Bef 11 Feb 1252)
   └─ Marguerite
    Tommaso Sanseverino (Abt 1252 - 25 Sep 1324)
       └─ Enrico Sanseverino (Abt 1275 - Between 1317 and 5 Nov 1319)
        Ilaria de Lauria ( - Aft 1340)
            + Margherita di Clignetti (Bef 1310 - ??)