House of Moray
An important feature of Scottish politics throughout the 11th century, they reached the height of their power with the reign of Macbeth between 1040 and 1057.[3] Clann Ruaidri has been claimed to have been descended in the male line from the Cenél Loairn, one of the ruling kindreds of Gaelic Dál Riata, based on a genealogy of Máel Snechtai reproduced in four Irish manuscripts.[4] The immediate ancestor of Domnall is given as Mongán mac Domnaill, who in fact died c. 700, over three centuries before the death of Findláech in 1020.The succession followed quite loyally the rules of tanistry, resulting in practice to outcomes where branches of the leaders' extended family rotated on the rulership, possibly keeping a balance between important branches.This is quite typical for tribal societies, where primogeniture is much less usual than agnatic seniority or turns on the throne.