Duncan Athelreda 
Crinan Grim (daughter) Dunegal Niccrinan Seward
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| Duncan Athelreda |
| Crinan Grim (daughter) Dunegal Niccrinan Seward
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Duncan mac Donnchad, lord of Mormaer
abt 0949, Atholl, Perthshire Scotland - aft 0990, Perthshire Scotland
Athelreda Mormaer
0950, Dunkeld, Perthshire Scotland - 1009, Perthshire England
Married: ?? - ??
Crinan mac Donnchad
abt 0976, Atholl, Perthshire Scotland - 1045, Dunkeld, Perthshire Scotland
Grim of Strathearn, thane of Strathearn
?? - 1010, Morlach, Co. Moray, Scotland (killed in the battle of Morlach)
(daughter), lady Leinster
??, Caithiness Highland Scotland - 1044, Scotland
Dunegal (Duncan) Eryvine
abt 0988, Caithiness Scotland - August 14, 1040, Perthshire Scotland
Niccrinan mac Donnchadh
?? - ??
Seward Northumberland
0990, Perthshire Scotland - 1055, York, Yorkshire England