King Muircheartach of Ireland I & Duabsech 
They had a son named Donal.
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Personal Details
King Muircheartach of Ireland I
Muircheartach was born in 0470 in Tyrone, Dalriada, Ireland.1 He died at the age of 63 in 0533 in Tyrone, Dalriada, Ireland.1
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Children
King Donal of Ireland I
Donal was born in 0510 in Dalriada, Ireland.3 He died at the age of 51 in 0561.3
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I034550
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I034553
3 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=clcaldwell&id=I034556&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I034553
3 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=clcaldwell&id=I034556&style=TABLE