John Lewyn of Durham: A Medieval Mason in Practice

John Lewyn was among the most important 14th century master masons, achieving a virtual dominance of high status castle building in the north of England from 1378-98. This study aims to reconstruct his career, determine his influence on developments in castle architecture, and draw some conclusions about his methods of working. The work contains a inventory of the castles he worked on, with full descriptions as well as photographs and floor plans.