This thesis examines how, in late-medieval England, uses of Scripture and associated written discourses expanded to encompass the sacramental functions hitherto privileged to the bread and wine of the Mass. This process, reflecting the longstanding if implicit importance of scriptural symbolism to the medieval Eucharist, also bears witness to a major cultural shift in this period: the assignment to words of the same powers that had underpinned the function of visual, non-verbal symbols in medieval religion and society. As Chapter Two demonstrates, this process was starkly exposed in John Wyclif’s vision of an English religion centred upon the sacrament of the preached word of Scripture, rather than on the Mass. As Chapter Three shows, this was the vision that Wyclif’s followers sought to realize, even if they may have achieved their aims only within a limited band of followers. However, Wyclif’s vision was powerful precisely because its relevance was not confined to Wycliffites. Chapter Four charts how the same substitution was taking place through the dissemination in English of ‘Scripture’, which, in its broadest sense, encompassed meditations upon depictions of Christ crucified as well as preaching. The greatest danger of Wycliffite thought to the late-medieval Church rested in its potential to increase lay awareness of this process. This threat was reflected in the restrictions placed by the English Church upon lay use of religious writings in the early fifteenth century. Nonetheless, as Chapter Five shows through a reading of one of Wyclif’s sternest critics, Thomas Netter, the eucharistic function of ‘Scripture’ had not disappeared but had to be occluded. This occlusion represents the most significant shift in the eucharistic function of ‘Scripture’ in the fifteenth century, allowing its use to develop further without threatening the Mass. This thesis concludes that the unacknowledged yet increasingly central role of ‘Scripture’ helps to explain why, at the Reformation, a scripturally-based religion seemed so quickly to supplant one to which images had been fundamental.

This thesis explores the potential influence of 'Lollardy' and reformist ideas on English legislation in the period c.1376 to c.1422. It focuses on a comparison between the ideas expressed in a variety of Wycliffite works, most especially the tracts that were reportedly presented to parliament, and the ideas contained within parliamentary legislative activity. The aim of the thesis is to shed light on the extent to which the political community shared the ideas expressed in 'heterodox' works and the extent to which the debate over 'Lollardy' informed the debates over other issues within parliament. It begins with an introductory section which explores the nature of 'Lollardy', the potential of the parliamentary and statute rolls as sources for the impact of reformist ideas, and an examination of what can be gleaned from other sources as regards the attitudes of the political community to reform. It then moves on to explore legislative activity on a variety of issues including papal provisions, vagrancy, appropriation, non-residence and pluralism, hospitals and fraternal recruitment practices - on a primarily chapter by chapter basis, exploring the ideas and arguments as they developed chronologically and mapping these, as far as possible, against the known chronology of 'Lollardy'. It also makes comparisons between the petitions and the government's response, in order to determine the dynamics of 'Lollardy's' influence. Did the commons have an underlying programme of reform? If so, did this programme bear any relationship to the programme of reform advocated by the Wycliffites and the protagonists of disendowment? How committed were the commons to the ideas they espoused? Did the Church accept a level of parliamentary interference to stave off the threat of 'Lollardy'? What was the government's attitude to reform? These are some of the central questions of this thesis.

In this dissertation, I examine the various ways in which medieval authors used the term "lollard" to mean something other than "Wycliffite." In the case of William Langland's Piers Plowman, I trace the usage of the lollard-trope through the C-text and link it to Langland's dependence on the Parable of the Wheat and the Tares. Regarding Chaucer's Parson's Tale, I establish the orthodoxy of the tale's speaker by comparing his tale to contemporaneous texts of varying orthodoxy, and I link the Parson's being referred to as a "lollard" to the eschatological message of his tale. In the chapter on The Book of Margery Kempe, I examine that the overemphasis on Margery's potential Wycliffism causes everyone in The Book to overlook her heretical views on universal salvation. Finally, in comparing some of John Lydgate's minor poems with the macaronic sermons of Oxford, MS Bodley 649, I establish the orthodox character of late-medieval English anti-Wycliffism that these disparate works share. In all, this dissertation points up the eschatological character of the lollard-trope and looks at the various ends to which medieval authors deployed it.