Causantin Mac Alpin
Causantin was born about 0836 in Scotland.  He died in 0877 in Blackcove, Angus, Scotland.

 Domnell Mac Alpin
Domnell was born in 0862 in Scotland.  He died at the age of 38 in 0900 in Forres, Moray, Scotland.

 Duncan of Caithness
Duncan was born about 0870 in Caithness, Scotland.  Duncan is no longer alive.