Nielsen Hayden genealogy
Descendants of Donnchad mac Briain, King of Munster
- 1064Father: Brian Boru, King of Munster and Ireland ( - 23 Apr 1014 Clontarf, Dublin, Ireland)
Mother: Gormlaith ingen Murchada ( - 1030)
Donnchad mac Briain, King of Munster ( - 1064 Rome)
   └─ Dirborgaill ingen Donnchada ( - 1080)
    Diarmait mac Mael na mBó, King of Leinster and High King of Ireland ( - 6 Feb 1072)
       └─ Murchad mac Diarmata, King of Leinster and Dublin ( - 8 Dec 1070)
        Sadb ingen Mac Bricc
           └─ Donnchad mac Murchada, King of Leinster and Dublin ( - 1115) =>
            + Orlaith ingen Ua Braenain