Causantin I (unknown) 
Donnall II
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| Donnall II
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Causantin (Constantine) I mac Cinaeda. king of Scotland
abt 0836, Iona, Fife, Argyleshire Scotland - 0877, Inverdovat, Forgan, Fifeshire Scotland
(died in the battle of Inveredovat against the Norse)
(unknown)
abt 0840, Scotland - ??
Married: ?? - ??
Donnall (Donald) II 'the Madman' mac Causantin, King of the Picts
abt 0862, Forres, Morayshire Scotland - 0900, Laurencekirk, Kincardineshire Scotland
(killed in battle by the Danes at Dunotter)
(Others Unknown)
?? - ??