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Duffy (2014b); Flanagan (2010) p. 231; Clancy, TO (2006) pp. 50–52. Duffy, S (2014b). "See Rome and Die: The Burial-Place of Donnchad mac Briain". History Ireland. 22 (2): 6–7. ISSN0791-8224. JSTOR23631070. Flanagan, MT (2010). The Transformation of the Irish Church in the Twelfth and Thirteenth Centuries. Studies in Celtic History. Woodbridge: The Boydell Press. ISBN978-1-84383-597-4. ISSN0261-9865. Clancy, TO (2006). "Brendan's European Tour: The Middle Irish Poem Mochen, mochen, a Brénaind and the Changing Nature of Pilgrimage in the Eleventh Century". In Burgess, GS; Strijbosch, C (eds.). The Brendan Legend: Texts and Versions. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. pp. 35–52. ISBN978-90-04-15247-2. ISSN1569-1462.
Byrne (2008) p. 890; Kunin; Phelpstead (2008) p. 110; Woolf (2007) p. 244 n. 29; Hudson, BT (2005) p. 143; Woolf (2005) p. 4; Hudson, B (2002) p. 246; Ó Corráin (1998) p. 448; Ó Cuív (1998) p. 80; Poole (1991) p. 131; Sayers (1991) p. 172; Sellar (1966) p. 132. Byrne, FJ (2008) [2005]. "Ireland and Her Neighbours, c.1014–c.1072". In Ó Cróinín, D (ed.). Prehistoric and Early Ireland. New History of Ireland. Oxford: Oxford University Press. pp. 862–898. ISBN978-0-19-821737-4. Kunin, D; Phelpstead, C, eds. (2008) [2001]. A History of Norway and the Passion and Miracles of the Blessed Óláfr(PDF). Viking Society for Northern Research Text Series. London: Viking Society for Northern Research. ISBN978-0-903521-48-2. Woolf, A (2007). From Pictland to Alba, 789–1070. The New Edinburgh History of Scotland. Edinburgh: Edinburgh University Press. ISBN978-0-7486-1233-8. Hudson, BT (2005). Viking Pirates and Christian Princes: Dynasty, Religion, and Empire in the North Atlantic. Oxford: Oxford University Press. ISBN978-0-19-516237-0. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213. Hudson, B (2002). "Brjáns Saga". Medium Ævum. 71 (1): 241–285. doi:10.2307/43630435. eISSN2398-1423. ISSN0025-8385. JSTOR43630435. Ó Corráin, D (1998). "Viking Ireland—Afterthoughts". In Clarke, HB; Ní Mhaonaigh, M; Ó Floinn, R (eds.). Ireland and Scandinavia in the Early Viking Age. Dublin: Four Courts Press. pp. 421–452. ISBN1-85182-235-6. Ó Cuív, B (1988). "Personal Names as an Indicator of Relations Between Native Irish and Settlers in the Viking Period". In Bradley, J (ed.). Settlement and Society in Medieval Ireland: Studies Presented to F.X. Martin. Irish Studies. Kilkenny: Boethius Press. pp. 79–88. ISBN0863141439. Poole, RG (1991). Viking Poems on War and Peace: A Study of Skaldic Narrative. Toronto Medieval Texts and Translations. Toronto: University of Toronto Press. ISBN0-8020-5867-1. Sayers, W (1991). "Clontarf, and the Irish Destinies of Sigurðr Digri, Earl of Orkney, and Þorsteinn Síðu-Hallsson". Scandinavian Studies. 63 (2): 164–186. eISSN2163-8195. ISSN0036-5637. JSTOR40919258. Sellar, WDH (1966). "The Origins and Ancestry of Somerled". Scottish Historical Review. 45 (2): 123–142. eISSN1750-0222. ISSN0036-9241. JSTOR25528658.
Downham (2017) p. 100 n. 62; Downham (2013b) p. 147; Candon (2006) p. 116; Forte; Oram; Pedersen (2005) p. 232; Candon (1988) p. 403. Downham, C (2017). "Scottish Affairs and the Political Context of Cogadh Gaedhel re Gallaibh". Traversing the Inner Seas: Contacts and Continuity Around Western Scotland, the Hebrides and Northern Ireland. Edinburgh: Scottish Society for Northern Studies. pp. 86–106. ISBN978-1-5272-0584-0. Downham, C (2013b). "The Historical Importance of Viking-Age Waterford". No Horns on Their Helmets? Essays on the Insular Viking-age. Celtic, Anglo-Saxon, and Scandinavian Studies. Aberdeen: Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen. pp. 129–155. ISBN978-0-9557720-1-6. ISSN2051-6509. Candon, A (2006). "Power, Politics and Polygamy: Women and Marriage in Late Pre-Norman Ireland". In Bracken, D; Ó Riain-Raedel, D (eds.). Ireland and Europe in the Twelfth Century: Reform and Renewal. Dublin: Four Courts Press. pp. 106–127. ISBN978-1-85182-848-7. Forte, A; Oram, RD; Pedersen, F (2005). Viking Empires. Cambridge: Cambridge University Press. ISBN978-0-521-82992-2. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416.
Downham (2017) p. 100 n. 62; Downham (2013b) p. 147; Duffy (2002) p. 55, 55 n. 7; Duffy (1993a) p. 34, 34 n. 16; Duffy (1992) p. 105, 105 n. 59; Candon (1988) p. 403; Dobbs (1931) pp. 196, 229. Downham, C (2017). "Scottish Affairs and the Political Context of Cogadh Gaedhel re Gallaibh". Traversing the Inner Seas: Contacts and Continuity Around Western Scotland, the Hebrides and Northern Ireland. Edinburgh: Scottish Society for Northern Studies. pp. 86–106. ISBN978-1-5272-0584-0. Downham, C (2013b). "The Historical Importance of Viking-Age Waterford". No Horns on Their Helmets? Essays on the Insular Viking-age. Celtic, Anglo-Saxon, and Scandinavian Studies. Aberdeen: Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen. pp. 129–155. ISBN978-0-9557720-1-6. ISSN2051-6509. Duffy, S (2002). "Emerging From the Mist: Ireland and Man in the Eleventh Century"(PDF). In Davey, P; Finlayson, D; Thomlinson, P (eds.). Mannin Revisited: Twelve Essays on Manx Culture and Environment. Edinburgh: The Scottish Society for Northern Studies. pp. 53–61. ISBN0-9535226-2-8. Archived from the original(PDF) on 25 September 2015. Retrieved 21 February 2016. Duffy, S (1993a). Ireland and the Irish Sea Region, 1014–1318 (PhD thesis). Trinity College Dublin. hdl:2262/77137. Duffy, S (1992). "Irishmen and Islesmen in the Kingdoms of Dublin and Man, 1052–1171". Ériu. 43: 93–133. eISSN2009-0056. ISSN0332-0758. JSTOR30007421. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416. Dobbs, ME, ed. (1931). "The Ban-Shenchus". Revue Celtique. 48: 163–234.
Goeres (2015) p. 161; Finlay; Faulkes (2014) pp. 113–114 ch. 103; Barrett (2007) p. 305; Whaley (2003) p. 27, 27 n. 12; Jónsson (1908a) pp. 343–348. Goeres, EM (2015). The Poetics of Commemoration: Skaldic Verse and Social Memory, c. 890–1070. Oxford English Monographs. Oxford: Oxford University Press. ISBN978-0-19-874574-7. Finlay, A; Faulkes, A, eds. (2014). Snorri Sturluson: Heimskringla. Vol. 2. London: Viking Society for Northern Research. ISBN978-0-903521-89-5. Barrett, JH (2007). "The Pirate Fisherman: The Political Economy of a Medieval Maritime Society". In Smith, BB; Taylor, S; Williams, G (eds.). West Over Sea: Studies in Scandinavian Sea-Borne Expansion and Settlement Before 1300. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. pp. 229–340. ISBN978-90-04-15893-1. ISSN1569-1462. Whaley, D (2003). "Arnórr, Earls' Propagandist? On the Techniques and Social Functions of Skaldic Eulogy". In Waugh, DJ (ed.). The Faces of Orkney: Stones, Skalds and Saints. Edinburgh: The Scottish Society for Northern Studies. ISBN0-9535226-1-X. Jónsson, F, ed. (1908a). Den Norsk-Islandske Skjaldedigtning. Vol. A, pt. 1. Copenhagen: Gyldendalske Boghandel. OL7010373M.
Downham (2017) p. 100 n. 62; Downham (2013b) p. 147; Duffy (2002) p. 55, 55 n. 7; Duffy (1993a) p. 34, 34 n. 16; Duffy (1992) p. 105, 105 n. 59; Candon (1988) p. 403; Dobbs (1931) pp. 196, 229. Downham, C (2017). "Scottish Affairs and the Political Context of Cogadh Gaedhel re Gallaibh". Traversing the Inner Seas: Contacts and Continuity Around Western Scotland, the Hebrides and Northern Ireland. Edinburgh: Scottish Society for Northern Studies. pp. 86–106. ISBN978-1-5272-0584-0. Downham, C (2013b). "The Historical Importance of Viking-Age Waterford". No Horns on Their Helmets? Essays on the Insular Viking-age. Celtic, Anglo-Saxon, and Scandinavian Studies. Aberdeen: Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen. pp. 129–155. ISBN978-0-9557720-1-6. ISSN2051-6509. Duffy, S (2002). "Emerging From the Mist: Ireland and Man in the Eleventh Century"(PDF). In Davey, P; Finlayson, D; Thomlinson, P (eds.). Mannin Revisited: Twelve Essays on Manx Culture and Environment. Edinburgh: The Scottish Society for Northern Studies. pp. 53–61. ISBN0-9535226-2-8. Archived from the original(PDF) on 25 September 2015. Retrieved 21 February 2016. Duffy, S (1993a). Ireland and the Irish Sea Region, 1014–1318 (PhD thesis). Trinity College Dublin. hdl:2262/77137. Duffy, S (1992). "Irishmen and Islesmen in the Kingdoms of Dublin and Man, 1052–1171". Ériu. 43: 93–133. eISSN2009-0056. ISSN0332-0758. JSTOR30007421. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416. Dobbs, ME, ed. (1931). "The Ban-Shenchus". Revue Celtique. 48: 163–234.
Wadden (2015) p. 32; Charles-Edwards (2013) pp. 528, 564; Duffy (2009) p. 291; Duffy (2006) pp. 55–56; Hudson, B (2005); Duffy (2002) p. 54; Oram (2000) pp. 16–18, 166–167; Duffy (1993a) pp. 32–33; Duffy (1993b); Duffy (1992) p. 100; Candon (1988) pp. 401–402. Woolf, A (2001). "Isles, Kingdom of the". In Lynch, M (ed.). The Oxford Companion to Scottish History. Oxford Companions. Oxford: Oxford University Press. pp. 346–347. ISBN0-19-211696-7. Charles-Edwards, TM (2013). Wales and the Britons, 350–1064. The History of Wales. Oxford: Oxford University Press. ISBN978-0-19-821731-2. Duffy, S (2009). "Ireland, c.1000–c.1100". In Stafford, P (ed.). A Companion to the Early Middle Ages: Britain and Ireland, c.500–c.1100. Blackwell Companions to British History. Chichester: Blackwell Publishing. pp. 285–302. ISBN978-1-405-10628-3. Duffy, S (2006). "The Royal Dynasties of Dublin and the Isles in the Eleventh Century". In Duffy, S (ed.). Medieval Dublin. Vol. 7. Dublin: Four Courts Press. pp. 51–65. ISBN1-85182-974-1. Hudson, B (2005). "Diarmait mac Máele-na-mBó (Reigned 1036–1072)". In Duffy, S (ed.). Medieval Ireland: An Encyclopedia. New York: Routledge. pp. 127–128. ISBN0-415-94052-4. Duffy, S (2002). "Emerging From the Mist: Ireland and Man in the Eleventh Century"(PDF). In Davey, P; Finlayson, D; Thomlinson, P (eds.). Mannin Revisited: Twelve Essays on Manx Culture and Environment. Edinburgh: The Scottish Society for Northern Studies. pp. 53–61. ISBN0-9535226-2-8. Archived from the original(PDF) on 25 September 2015. Retrieved 21 February 2016. Oram, RD (2000). The Lordship of Galloway. Edinburgh: John Donald. ISBN0-85976-541-5. Duffy, S (1993a). Ireland and the Irish Sea Region, 1014–1318 (PhD thesis). Trinity College Dublin. hdl:2262/77137. Duffy, S (1993b). "Pre-Norman Dublin: Capital of Ireland?". History Ireland. 1 (4): 13–18. ISSN0791-8224. JSTOR27724114. Duffy, S (1992). "Irishmen and Islesmen in the Kingdoms of Dublin and Man, 1052–1171". Ériu. 43: 93–133. eISSN2009-0056. ISSN0332-0758. JSTOR30007421. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416.
Wadden (2015) pp. 28–29; Annals of Inisfallen (2010) § 984.2; Annals of Inisfallen (2008) § 984.2; Downham (2007) pp. 191, 195, 253; Hudson, BT (2005) p. 134. Wadden, P (2015). "The Normans and the Irish Sea World in the Era of the Battle of Clontarf". In McAlister, V; Barry, T (eds.). Space and Settlement in Medieval Ireland. Dublin: Four Courts Press. pp. 15–33. ISBN978-1-84682-500-2. "Annals of Inisfallen". Corpus of Electronic Texts (16 February 2010 ed.). University College Cork. 2010. Retrieved 26 August 2019. "Annals of Inisfallen". Corpus of Electronic Texts (23 October 2008 ed.). University College Cork. 2008. Retrieved 26 August 2019. Downham, C (2007). Viking Kings of Britain and Ireland: The Dynasty of Ívarr to A.D. 1014. Edinburgh: Dunedin Academic Press. ISBN978-1-903765-89-0. Hudson, BT (2005). Viking Pirates and Christian Princes: Dynasty, Religion, and Empire in the North Atlantic. Oxford: Oxford University Press. ISBN978-0-19-516237-0.
Annals of Inisfallen (2010) § 1026.2; Annals of Inisfallen (2008) § 1026.2; Hudson, BT (2005) p. 134; Duffy (1998) p. 76. "Annals of Inisfallen". Corpus of Electronic Texts (16 February 2010 ed.). University College Cork. 2010. Retrieved 26 August 2019. "Annals of Inisfallen". Corpus of Electronic Texts (23 October 2008 ed.). University College Cork. 2008. Retrieved 26 August 2019. Hudson, BT (2005). Viking Pirates and Christian Princes: Dynasty, Religion, and Empire in the North Atlantic. Oxford: Oxford University Press. ISBN978-0-19-516237-0. Duffy, S (1998). "Ireland's Hastings: The Anglo-Norman Conquest of Dublin". In Harper-Bill, C (ed.). Anglo-Norman Studies. Vol. 20. Woodbridge: The Boydell Press. pp. 69–85. ISBN0-85115-573-1. ISSN0954-9927.
Byrne (2008) p. 890; Kunin; Phelpstead (2008) p. 110; Woolf (2007) p. 244 n. 29; Hudson, BT (2005) p. 143; Woolf (2005) p. 4; Hudson, B (2002) p. 246; Ó Corráin (1998) p. 448; Ó Cuív (1998) p. 80; Poole (1991) p. 131; Sayers (1991) p. 172; Sellar (1966) p. 132. Byrne, FJ (2008) [2005]. "Ireland and Her Neighbours, c.1014–c.1072". In Ó Cróinín, D (ed.). Prehistoric and Early Ireland. New History of Ireland. Oxford: Oxford University Press. pp. 862–898. ISBN978-0-19-821737-4. Kunin, D; Phelpstead, C, eds. (2008) [2001]. A History of Norway and the Passion and Miracles of the Blessed Óláfr(PDF). Viking Society for Northern Research Text Series. London: Viking Society for Northern Research. ISBN978-0-903521-48-2. Woolf, A (2007). From Pictland to Alba, 789–1070. The New Edinburgh History of Scotland. Edinburgh: Edinburgh University Press. ISBN978-0-7486-1233-8. Hudson, BT (2005). Viking Pirates and Christian Princes: Dynasty, Religion, and Empire in the North Atlantic. Oxford: Oxford University Press. ISBN978-0-19-516237-0. Woolf, A (2005). "The Origins and Ancestry of Somerled: Gofraid mac Fergusa and 'The Annals of the Four Masters'". Mediaeval Scandinavia. 15: 199–213. Hudson, B (2002). "Brjáns Saga". Medium Ævum. 71 (1): 241–285. doi:10.2307/43630435. eISSN2398-1423. ISSN0025-8385. JSTOR43630435. Ó Corráin, D (1998). "Viking Ireland—Afterthoughts". In Clarke, HB; Ní Mhaonaigh, M; Ó Floinn, R (eds.). Ireland and Scandinavia in the Early Viking Age. Dublin: Four Courts Press. pp. 421–452. ISBN1-85182-235-6. Ó Cuív, B (1988). "Personal Names as an Indicator of Relations Between Native Irish and Settlers in the Viking Period". In Bradley, J (ed.). Settlement and Society in Medieval Ireland: Studies Presented to F.X. Martin. Irish Studies. Kilkenny: Boethius Press. pp. 79–88. ISBN0863141439. Poole, RG (1991). Viking Poems on War and Peace: A Study of Skaldic Narrative. Toronto Medieval Texts and Translations. Toronto: University of Toronto Press. ISBN0-8020-5867-1. Sayers, W (1991). "Clontarf, and the Irish Destinies of Sigurðr Digri, Earl of Orkney, and Þorsteinn Síðu-Hallsson". Scandinavian Studies. 63 (2): 164–186. eISSN2163-8195. ISSN0036-5637. JSTOR40919258. Sellar, WDH (1966). "The Origins and Ancestry of Somerled". Scottish Historical Review. 45 (2): 123–142. eISSN1750-0222. ISSN0036-9241. JSTOR25528658.
Downham (2017) p. 100 n. 62; Downham (2013b) p. 147; Duffy (2002) p. 55, 55 n. 7; Duffy (1993a) p. 34, 34 n. 16; Duffy (1992) p. 105, 105 n. 59; Candon (1988) p. 403; Dobbs (1931) pp. 196, 229. Downham, C (2017). "Scottish Affairs and the Political Context of Cogadh Gaedhel re Gallaibh". Traversing the Inner Seas: Contacts and Continuity Around Western Scotland, the Hebrides and Northern Ireland. Edinburgh: Scottish Society for Northern Studies. pp. 86–106. ISBN978-1-5272-0584-0. Downham, C (2013b). "The Historical Importance of Viking-Age Waterford". No Horns on Their Helmets? Essays on the Insular Viking-age. Celtic, Anglo-Saxon, and Scandinavian Studies. Aberdeen: Centre for Anglo-Saxon Studies and The Centre for Celtic Studies, University of Aberdeen. pp. 129–155. ISBN978-0-9557720-1-6. ISSN2051-6509. Duffy, S (2002). "Emerging From the Mist: Ireland and Man in the Eleventh Century"(PDF). In Davey, P; Finlayson, D; Thomlinson, P (eds.). Mannin Revisited: Twelve Essays on Manx Culture and Environment. Edinburgh: The Scottish Society for Northern Studies. pp. 53–61. ISBN0-9535226-2-8. Archived from the original(PDF) on 25 September 2015. Retrieved 21 February 2016. Duffy, S (1993a). Ireland and the Irish Sea Region, 1014–1318 (PhD thesis). Trinity College Dublin. hdl:2262/77137. Duffy, S (1992). "Irishmen and Islesmen in the Kingdoms of Dublin and Man, 1052–1171". Ériu. 43: 93–133. eISSN2009-0056. ISSN0332-0758. JSTOR30007421. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416. Dobbs, ME, ed. (1931). "The Ban-Shenchus". Revue Celtique. 48: 163–234.
Wadden (2015) p. 32; Charles-Edwards (2013) pp. 528, 564; Duffy (2009) p. 291; Duffy (2006) pp. 55–56; Hudson, B (2005); Duffy (2002) p. 54; Oram (2000) pp. 16–18, 166–167; Duffy (1993a) pp. 32–33; Duffy (1993b); Duffy (1992) p. 100; Candon (1988) pp. 401–402. Woolf, A (2001). "Isles, Kingdom of the". In Lynch, M (ed.). The Oxford Companion to Scottish History. Oxford Companions. Oxford: Oxford University Press. pp. 346–347. ISBN0-19-211696-7. Charles-Edwards, TM (2013). Wales and the Britons, 350–1064. The History of Wales. Oxford: Oxford University Press. ISBN978-0-19-821731-2. Duffy, S (2009). "Ireland, c.1000–c.1100". In Stafford, P (ed.). A Companion to the Early Middle Ages: Britain and Ireland, c.500–c.1100. Blackwell Companions to British History. Chichester: Blackwell Publishing. pp. 285–302. ISBN978-1-405-10628-3. Duffy, S (2006). "The Royal Dynasties of Dublin and the Isles in the Eleventh Century". In Duffy, S (ed.). Medieval Dublin. Vol. 7. Dublin: Four Courts Press. pp. 51–65. ISBN1-85182-974-1. Hudson, B (2005). "Diarmait mac Máele-na-mBó (Reigned 1036–1072)". In Duffy, S (ed.). Medieval Ireland: An Encyclopedia. New York: Routledge. pp. 127–128. ISBN0-415-94052-4. Duffy, S (2002). "Emerging From the Mist: Ireland and Man in the Eleventh Century"(PDF). In Davey, P; Finlayson, D; Thomlinson, P (eds.). Mannin Revisited: Twelve Essays on Manx Culture and Environment. Edinburgh: The Scottish Society for Northern Studies. pp. 53–61. ISBN0-9535226-2-8. Archived from the original(PDF) on 25 September 2015. Retrieved 21 February 2016. Oram, RD (2000). The Lordship of Galloway. Edinburgh: John Donald. ISBN0-85976-541-5. Duffy, S (1993a). Ireland and the Irish Sea Region, 1014–1318 (PhD thesis). Trinity College Dublin. hdl:2262/77137. Duffy, S (1993b). "Pre-Norman Dublin: Capital of Ireland?". History Ireland. 1 (4): 13–18. ISSN0791-8224. JSTOR27724114. Duffy, S (1992). "Irishmen and Islesmen in the Kingdoms of Dublin and Man, 1052–1171". Ériu. 43: 93–133. eISSN2009-0056. ISSN0332-0758. JSTOR30007421. Candon, A (1988). "Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 1119". In Mac Niocaill, G; Wallace, PF (eds.). Keimelia: Studies in Medieval Archaeology and History in Memory of Tom Delaney. Galway: Galway University Press. pp. 397–416.
Bolton (2009) p. 307. Bolton, T (2009). The Empire of Cnut the Great: Conquest and the Consolidation of Power in Northern Europe in the Early Eleventh Century. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. ISBN978-90-04-16670-7. ISSN1569-1462.
Bolton (2009) pp. 136–137. Bolton, T (2009). The Empire of Cnut the Great: Conquest and the Consolidation of Power in Northern Europe in the Early Eleventh Century. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. ISBN978-90-04-16670-7. ISSN1569-1462.
Wadden (2015) pp. 31–32; Downham (2004) p. 65. Woolf, A (2001). "Isles, Kingdom of the". In Lynch, M (ed.). The Oxford Companion to Scottish History. Oxford Companions. Oxford: Oxford University Press. pp. 346–347. ISBN0-19-211696-7. Downham, C (2004). "England and the Irish-Sea Zone in the Eleventh Century". In Gillingham, J (ed.). Anglo-Norman Studies. Vol. 26. Woodbridge: The Boydell Press. pp. 55–73. ISBN1-84383-072-8. ISSN0954-9927.
Bolton (2009) p. 147. Bolton, T (2009). The Empire of Cnut the Great: Conquest and the Consolidation of Power in Northern Europe in the Early Eleventh Century. The Northern World: North Europe and the Baltic c. 400–1700 AD. Peoples, Economics and Cultures. Leiden: Brill. ISBN978-90-04-16670-7. ISSN1569-1462.
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