Dubgall mac Somairle was an apparent King of the Isles. He was a son of Somairle mac Gilla Brigte and Ragnhildr Óláfsdóttir. Dubgall was a leading figure of Clann Somairle, and the eponymous ancestor of Clann Dubgaill. Dubgall's career is obscure,... Wikipedia
Died: 1175
Parents: Somerled and Ragnhildis Olafsdottir
Children: Donnchadh of Argyll and Óspakr-Hákon
Great grandchildren: Alexander of Argyll, Domnall mac Brian Ó Néill, Maria de Ergadia, and more
Grandchildren: Eóghan of Argyll and Jill of Argyll
House: Clann Somairle