Historical Works from Medieval Wales is the fourth volume in The Library of Medieval Welsh Literature series. It introduces readers to the genre of medieval Welsh historical texts on the basis of a broad selection of annotated passages, which range from an account of the legendary origin of Britain to the fall of the last native prince. Each passage is preceded by an introductory paragraph indicating the source and relating it to its wider historical and literary context.The selections are accompanied by a substantial introduction, extensive linguistic notes, and a full glossary. The introduction discusses general features of medieval historiography, as well as the manuscripts and edited works from which the excerpts have been taken. The second part of the introduction contains a detailed description of the language (orthography, morphology and syntax) employed in the selected passages.The volume aims to make Middle Welsh historical texts accessible to third-level students whose first language is not Welsh, but can also be used and enjoyed by native speakers of Welsh, students and interested readers seeking an overall view of historical texts from medieval Wales.Patricia Williams is a retired lecturer in Welsh language and literature at the University of Manchester.