The PEDIGREE of
Flaithbertach macMuirchertaig O'NAILL

     aka Flaithbheartach of TIR-EOGHAIN

HM George I's 23-Great Grandfather.       U.S. President's 26-Great Grandfather.       Poss. `Osawatomie' Brown's 27-Great Grandfather.
 Wife/Partner:       Magach (Princess) of MUMHAN
 Child:       Aed Athlamhan O'NAILL (42nd King) of AILECH
______________________________________________________ 
/-- Aedh Finnliath MacNEILL   +==&=> [ 195 ,,BD,&]
/-- Niall Glundub MacAEDA (O'NAILL)  (870? - 919)
| \-- Dubha (Princess) of OSSORY   +==&=> [ 190 ,,BD,&]
/   | OR: Maelmare MacALPIN   +==&=> [ 189 ,,pBD,&]
/-- Muirchertach na G-Cochaill Criceann MacNEILL
| \-- Land (Lund) verch ECHACH   +==&=> [ 193 ,,pBD,&]
/   | OR: poss. Klara   +====> [ 192 ,,p,&]
/-- Domnall O'NAILL (173rd MONARCH) of IRELAND  (? - 978)
/-- Muirchertach MacDOMNAILL (King of MIDE) O'NAILL
| \   /-- Cellach (Ceallagh; II) MacCERBAILL   +==&=> [ 197 ,,BD,&]
| |  /   | or: prob. Murcertac (Muirchertach) of OSSORY (Cellach's son)
| | /-- Donnchad (I) MacCELLAIG (MacCELLAICH)  (? - 976?)
| | | \  | OR: poss. Donnchad of OSSORY   +==&=> [ 199 ,,BD,&]
| | | \-- Echrad ingen MATUDAN of ULSTER   +==&=> [ 187 ,,BD,&]
| | /   | or: poss. Sabh
/  \-- Mor of OSSORY  (? - 982)
- Flaithbertach macMuirchertaig O'NAILL
\  
\-- (missing)
 
  His (poss.) 3(+)-Great Grandchildren:       Farquhar   ;   Muircheartach Muighe O'NEILL
  His (poss.) 8(+)-Great Grandchildren:       Malcolm (2nd Laird of) LAMONT   ;   John (Sir) `the White' LYON   ;   Brian O'NEILL (King) of TIR-EOGHAIN   ;   Aedh Baemhar (King of ULSTER) O'NEILL
 

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