Piers the Ploughman by William Langland.
 
Piers Plowman or Visio Willelmi de Petro Ploughman is a Middle English allegorical narrative poem by William Langland. It is written in un-rhymed, alliterative verse divided into sections called passus. The author is critical of late medieval society and uses Piers Plowman to explore the sinful nature of humanity and the challenges faced by those trying to live virtuously in late medieval England. The poem is an often-humorous satire with a serious point.