Nielsen Hayden genealogy
Descendants of Amargen Ua Morda, King of Loigsi
- 1097Father: Faelan Ua Morda, King of Loigsi ( - 1069)
Mother: Maelind ingen Meic Dairgin
Amargen Ua Morda, King of Loigsi ( - 1097)
   └─ Loigsech Ua Morda, King of Loigsi ( - 1149)
    Gormlaith ingen Finn Ua Caellaide
       └─ Cacht ingen Loigsig Ua Morda
        Muirchertach Ua Tuathail, King of the Uí Muirdeaigh ( - 1164)
           └─ Mor ni Tuathail (Abt 1114 Castledermot, Kildare, Ireland - 1191 Ireland) =>
            + Diarmait mac Murchada, King of Leinster (Abt 1110 Leinster, Ireland - 1 Jan 1171)