 Domhnall's son, Dormhnall Gorm, married a daughter of Eoghan Óg Mac Suibhne na dTuath and had ten children, before dying in 1637.Dormhnall Gorm's sons, Domhnall Óg and Aodh Buidhe are recorded having lands in Clondavaddog in north Fanad, held forfeit after the Irish Rebellion of 1641.Na Trí Tuatha or Tuatha Toraighe, which was an area west of Fanad (modern day parishes of Gweedore and Tory Island), was controlled by the Ó Baegill until just after 1360, when it was conquered by Clann tSuibhne ("Clan Sweeney").