At the National Library of Wales a manuscript (MS 21608) has been recently found. An English Chronicle 1377-1461, which is based on the recently found text, covers the reigns of Richard II, Henry IV, Henry V and Henry VI. As a crucial source for the vernacular history writing and the Brut tradition in the late Middle Ages, the Chronicle contains two different parts: the first part of the Chronicle, that is 1377-1422/37 version was written by a Lancastrian compiler and the second part, that is the Continuation 1440-1461, was written by a Yorkist author. Undoubtedly, they had contrasting approaches to the politics of the late medieval period. The Chronicle offers its readers an opportunity to explore Lancastrian and Yorkist history writing. This book discusses both approaches to the politics of the period in the Chronicle. The Lancastrian and Yorkist perspectives about the contemporary politics and how these viewpoints were reflected in their writings have been explored. Accordingly, this book investigates the Chronicle, which offers both an insight to the politics and history writing of the late medieval period.