A Brief History of the Normans: The Conquests that Changed the Face of Europe: Amazon.co.uk: Francois Neveux, Howard Curtis: 9781845295233: Books [online]. www.amazon.co.uk, [cit. 2025-02-01]. Dostupné online. (po anglicky)
LITTLE, Charles Eugene. Cyclopedia of classified dates, with an exhaustive index. [s.l.]: New York and London, Funk & Wagnalls company, 1900. Dostupné online. S.666.
BENOÎT, de Sainte-More; FANTOSME, Jordan; MICHEL, Francisque. Chronique des ducs de Normandie. [s.l.]: Paris: Imprimerie royale, 1836. Dostupné online.
LA FAY, Howard; NATIONAL GEOGRAPHIC SOCIETY (U.S.). SPECIAL PUBLICATIONS DIVISION. The Vikings. [s.l.]: [Washington, National Geographic Society, 1972. Dostupné online.ISBN 978-0-87044-108-0. S.146.
BACHRACH, Bernard S.; FANNING, Steven. The 'Annals' of Flodoard of Reims, 919-966. [s.l.]: University of Toronto Press, 2004-11-01. Dostupné online.ISBN 978-1-4426-0857-3. S.14, 16-17. (po anglicky)
FERGUSON, Robert. The Hammer and the Cross: A New History of the Vikings. [s.l.]: Allen Lane, 2009. Google-Books-ID: hsNWAAAAYAAJ. Dostupné online.ISBN 978-0-7139-9788-0. S.180. (po anglicky)
CROUCH, David. The Normans: The History of a Dynasty. [s.l.]: A&C Black, 2006-10-15. Google-Books-ID: f_TUAwAAQBAJ. Dostupné online.ISBN 978-1-85285-595-6. (po anglicky)
HARPER-BILL, Christopher; VINCENT, Nicholas. Henry II: New Interpretations. [s.l.]: Boydell Press, 2007. Google-Books-ID: T_Ong1PZq_QC. Dostupné online.ISBN 978-1-84383-340-6. S.77. (po anglicky)
WACE; HOUTS, Elisabeth M. C. Van. The History of the Norman People: Wace's Roman de Rou. [s.l.]: Boydell Press, 2004. Google-Books-ID: Thwv9WLq_50C. Dostupné online.ISBN 978-1-84383-007-8. S.11. (po anglicky)
QUENTIN), Dudo (Dean of St. History of the Normans. [s.l.]: Boydell & Brewer Ltd, 1998. Google-Books-ID: 3ueqiHfAzrMC. Dostupné online.ISBN 978-0-85115-552-4. S.Kapitola 5. (po anglicky)
FERGUSON, Robert. The Hammer and the Cross: A New History of the Vikings. [s.l.]: Allen Lane, 2009. Google-Books-ID: hsNWAAAAYAAJ. Dostupné online.ISBN 978-0-7139-9788-0. S.177. (po anglicky)
MALMESBURY), William (of. The Kings Before the Norman Conquest. [s.l.]: Llanerch Enterprises, 1989. Google-Books-ID: ryAXAQAAIAAJ. Dostupné online.ISBN 978-0-947992-32-3. S.110. (po anglicky)
STURLUSON, Snorri. King Harald's Saga: Harald Hardradi of Norway. [s.l.]: Penguin Publishing Group, 1966. Google-Books-ID: s5yApJuQzK8C. Dostupné online.ISBN 978-0-14-044183-3. (po anglicky)
WOOLF, Alex. From Pictland to Alba: 789 - 1070. [s.l.]: Edinburgh University Press, 2007. Google-Books-ID: Z4VnAAAAMAAJ. Dostupné online.ISBN 978-0-7486-1234-5. S.296. (po anglicky)
HOUTS, Elisabeth M. C. Van. The Normans in Europe. [s.l.]: Manchester University Press, 2000-12-15. Google-Books-ID: IarkHmOdjnsC. Dostupné online.ISBN 978-0-7190-4751-0. S.43. (po anglicky)
QUENTIN), Dudo (Dean of St. History of the Normans. [s.l.]: Boydell & Brewer Ltd, 1998. Google-Books-ID: 3ueqiHfAzrMC. Dostupné online.ISBN 978-0-85115-552-4. (po anglicky)
FERGUSON, Robert. The Hammer and the Cross: A New History of the Vikings. [s.l.]: Allen Lane, 2009. Google-Books-ID: hsNWAAAAYAAJ. Dostupné online.ISBN 978-0-7139-9788-0. S.177-182. (po anglicky)
QUENTIN), Dudo (Dean of St. History of the Normans. [s.l.]: Boydell & Brewer Ltd, 1998. Google-Books-ID: 3ueqiHfAzrMC. Dostupné online.ISBN 978-0-85115-552-4. S.38-39. (po anglicky)
QUENTIN), Dudo (Dean of St. History of the Normans. [s.l.]: Boydell & Brewer Ltd, 1998. Google-Books-ID: 3ueqiHfAzrMC. Dostupné online.ISBN 978-0-85115-552-4. S.46-47. (po anglicky)
FERGUSON, Robert. The Hammer and the Cross: A New History of the Vikings. [s.l.]: Allen Lane, 2009. Google-Books-ID: hsNWAAAAYAAJ. Dostupné online.ISBN 978-0-7139-9788-0. S.187. (po anglicky)
HOUTS, Elisabeth M. C. Van. The Normans in Europe. [s.l.]: Manchester University Press, 2000-12-15. Google-Books-ID: IarkHmOdjnsC. Dostupné online.ISBN 978-0-7190-4751-0. S.25. (po anglicky)
QUENTIN), Dudo (Dean of St. History of the Normans. [s.l.]: Boydell & Brewer Ltd, 1998. Google-Books-ID: 3ueqiHfAzrMC. Dostupné online.ISBN 978-0-85115-552-4. S.49. (po anglicky)
BATES, David. Normandy Before 1066. [s.l.]: Longman, 1982. Google-Books-ID: DdoiAQAAIAAJ. Dostupné online.ISBN 978-0-582-48492-4. S.20-21. (po anglicky)