Oram (2014) p. 2. Oram, RD (2014). "Introduction: A Celtic Dirk at Scotland's Back? The Lordship of the Isles Mainstream Scottish Historiography since 1828". In Oram, RD (ed.). The Lordship of the Isles. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. pp. 1–39. doi:10.1163/9789004280359_002. ISBN978-90-04-28035-9. ISSN1569-1462.
The Annals of Ulster (2012) §§ 934.1, 1164.4; The Annals of Ulster (2008) §§ 934.1, 1164.4; Woolf (2005). "The Annals of Ulster". Corpus of Electronic Texts (15 August 2012 ed.). University College Cork. 2012. Retrieved 6 June 2016. "The Annals of Ulster". Corpus of Electronic Texts (29 August 2008 ed.). University College Cork. 2008. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
Annals of the Four Masters (2013b) §§ 851.16, 1083.10; Annals of the Four Masters (2013c) §§ 851.16, 1083.10; Woolf (2005). "Annals of the Four Masters". Corpus of Electronic Texts (3 December 2013 ed.). University College Cork. 2013b. Retrieved 6 June 2016. "Annals of the Four Masters". Corpus of Electronic Texts (16 December 2013 ed.). University College Cork. 2013c. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
The Annals of Ulster (2012) §§ 918.4, 934.1; The Annals of Ulster (2008) §§ 918.4, 934.1; Woolf (2005). "The Annals of Ulster". Corpus of Electronic Texts (15 August 2012 ed.). University College Cork. 2012. Retrieved 6 June 2016. "The Annals of Ulster". Corpus of Electronic Texts (29 August 2008 ed.). University College Cork. 2008. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
The Annals of Ulster (2012) § 918.4; The Annals of Ulster (2008) § 918.4; Woolf (2005). "The Annals of Ulster". Corpus of Electronic Texts (15 August 2012 ed.). University College Cork. 2012. Retrieved 6 June 2016. "The Annals of Ulster". Corpus of Electronic Texts (29 August 2008 ed.). University College Cork. 2008. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
The Annals of Ulster (2012) § 934.1; The Annals of Ulster (2008) § 934.1; Woolf (2005). "The Annals of Ulster". Corpus of Electronic Texts (15 August 2012 ed.). University College Cork. 2012. Retrieved 6 June 2016. "The Annals of Ulster". Corpus of Electronic Texts (29 August 2008 ed.). University College Cork. 2008. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
The Annals of Ulster (2012) § 1164.4; The Annals of Ulster (2008) § 1164.4; Woolf (2005). "The Annals of Ulster". Corpus of Electronic Texts (15 August 2012 ed.). University College Cork. 2012. Retrieved 6 June 2016. "The Annals of Ulster". Corpus of Electronic Texts (29 August 2008 ed.). University College Cork. 2008. Retrieved 6 June 2016. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
Ceannaigh Duain t'Athar (2012); Beuermann (2010) p. 108 n. 9; Bateman; McLeod (2007) pp. 78, 91; Woolf (2005). "Ceannaigh Duain t'Athar, a Aonghas". Corpus of Electronic Texts (10 July 2012 ed.). University College Cork. 2012. Retrieved 11 June 2016. Beuermann, I (2010). "'Norgesveldet?' South of Cape Wrath? Political Views Facts, and Questions". In Imsen, S (ed.). The Norwegian Domination and the Norse World c. 1100–c. 1400. Trondheim Studies in History. Trondheim: Tapir Academic Press. pp. 99–123. ISBN978-82-519-2563-1. Bateman, M; McLeod, W, eds. (2007). Duanaire Na Sracaire, Songbook of the Pillagers: Anthology of Scotland's Gaelic Verse to 1600. Edinburgh: Birlinn. ISBN978-1-84158-181-1. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213.
Woolf (2005); Thornton (1996) pp. 94–96. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213. Thornton, DE (1996). "The Genealogy of Gruffudd ap Cynan". In Maund, KL (ed.). Gruffudd ap Cynan: A Collaborative Biography. Studies in Celtic History. Woodbridge: The Boydell Press. pp. 79–108. ISBN0-85115-389-5. ISSN0261-9865.
Oram (2014) p. 2. Oram, RD (2014). "Introduction: A Celtic Dirk at Scotland's Back? The Lordship of the Isles Mainstream Scottish Historiography since 1828". In Oram, RD (ed.). The Lordship of the Isles. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. pp. 1–39. doi:10.1163/9789004280359_002. ISBN978-90-04-28035-9. ISSN1569-1462.