Legendary Kings of Scotland by James de Witt.

66: Congallus III or Convallus II (Conall Crandomna). He was king of Dál Riata (modern western Scotland) from about 650 until 660. The Senchus fer n-Alban (an Old Irish medieval text) makes him a son of Eochaid Buide and thus a member of the Cenél nGabráin. He was co-ruler with Dúnchad mac Conaing until 654, after which he was apparently sole ruler. His sons Máel Dúin mac Conaill and Domnall Donn may have been kings of Dál Riata. His death in 659 or 660 is reported by the Annals of Ulster.

67: Dongallus (Domangart mac Domnaill). It is not clear whether he was king of Dál Riata or king of the Cenél nGabráin (the Cenél nGabráin was a kingroup, presumed to descend from Gabrán mac Domangairt, which dominated the kingship of Dál Riata until the late 7th century and continued to provide kings thereafter.)