*Dougall (Dufgall) "Mac Ruaidhri" Sumarlidasson King of Innesgall
born about 1144 Lorne, Argyllshire, (Ergadia), Scotland

father:
*Somerled King of the Isles
born about 1113 Morven, Argyleshire, Scotland
died 1 January 1164 Renfrew
buried Abbey of Saddell, Kintyre, Argule, Scotland

mother:
*Ragnhild Olafsdatter
born about 1117 Isle of Man

siblings:
*Rognvald (Reginald) Sumarlidasson Lord of the Isles
born about 1148 Morven, Argyleshire, Scotland died 1207 Kintyre, Argyleshire, Scotland
*Angus (Engull) Sumarlidasson Prince of Man born about 1145 Morven, Argyle, Scotland died 1210
Olave Prince of Isles born about 1147 Morven, Argyle, Scotland
Gal Macsgillen Prince of Isles born about 1149 Morven, Argyle, Scotland
Beatrice Prioress of Iona born about 1151 Morven, Argyle, Scotland
died Priory of Iona, Iona, Kintyre, Scotland
Alan Sumarlidasson born about 1154

spouse:
unknown

children:
*Duncan MacDougall King of the Isles Lord of Argyll born about 1170 died 1248
Dugald "Screech" King of the Isles born 1179 died 1235
Gillespie (Uspak) King of the Isles born 1181 died 1230

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com