Uilleam, Yerl o Mar

Uilleam o Mar, or Uilleam mac Dhonnchaidh (Anglicised: William, Duncan's son), wis aiblins the greatest o the mormaers o Mar rulin frae 1244 tae 1276, kent as Yerl o Mar an aw.

Precedit bi
Donnchadh
Mormaer o Mar
1244–1276
Succeedit bi
Domhnall