The lecture will explore the lay-out of the medieval towns of Beverley, Hexham, Hull, Ripon, Southwell, and York during the fourteenth century. The morphology of the town plans, especially the relationship between the market place and the minster or major church in each town, seems to have been distinctive to these northern regions. Containing images of maps and street plans, the lecture shows how important maps are to our understanding of medieval history and town planning.