Geoffrey of Monmouth was a Catholic cleric from Monmouth, Wales, and one of the major figures in the development of British historiography and the popularity of tales of King Arthur. Wikipedia
Died: c. 1155 (aged 59–60)
Education: University of Oxford
Known for: Historia Regum BritanniaeProphetiae MerliniVita Merlini
Other names: Galfridus Monemutensis; Galfridus Arturus; Galfridus Artur; Gruffudd ap Arthur; Sieffre o Fynwy