The brewery of Weltenburg Abbey (modern Germany) is first mentioned, thus making it one of the oldest still operating breweries in the world (approximate date).[15][16][17]
Publishing, Britannica Educational (2014). Denmark, Finland, and Sweden. The Britannica Guide to Countries of the European Union. New York: Britanncia Educational Publishing. p.177. ISBN9781615309955.
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1996). Handbook of British Chronology (Third revised ed.). Cambridge University Press. ISBN0-521-56350-X.
Deuffic, Jean-Luc (September 13, 2012). "Des Heures ... et des armes. Bertrand de Tourzel et Isabelle de Lévis: un couple mécène". Pecia (in French). 14: 295–330. doi:10.1484/J.PECIA.1.102649.
al-Jawzī, Abū al-Faraj ʻAbd al-Raḥmān ibn ʻAlī Ibn; al-Jawzi, Ibn (2016). Qutbuddin, Tahera; Fowden, Garth (eds.). The Life of Ibn Hanbal. Translated by Cooperson, Michael. New York: New York University Press. p.323. ISBN9781479805303.
Anderson, Joseph; Hjaltalin, Jon A.; Goudie, Gilbert (2019). The Orkneyinga Saga. Cambridge and New York: Cambridge University Press. pp.cxxvii. ISBN9781108082242.
Meyer, Mati (2006). "The Levite's Concubine: Imaging the Marginal Woman in Byzantine Society". Studies in Iconography. 27: 45–76. ISSN0148-1029. JSTOR23923693.