Oldcastle Revolt religious beliefs were considerably influenced by Lollard cleric William Swynderby, who preached in Almeley during his youth. Lollardy was a politico-religious movement initiated by prominent theologian John Wycliffe in the 1370s during his service in the University of Oxford. Lollard beliefs were outlined in the 1395 The Twelve Conclusions of the Lollards, which dealt with their opposition to capital punishment, rejection of religious celibacy, and belief that members of the Clergy should be held accountable to civil laws. The Conclusions also rejected pilgrimages, ornamentation of churches, and religious images because these were said to take away from the true nature
John Wycliffe influential part. From 1380 onwards, Wycliffe devoted himself to writings that argued his rejection of transubstantiation, and strongly criticised the friars who supported it. John Wycliffe had come to regard the scriptures as the only reliable guide to the truth about God, and maintained that all Christians should rely on the Bible rather than on the teachings of popes and clerics. He said that there was no scriptural justification for the papacy. Theologically, his preaching expressed a strong belief in predestination that enabled him to declare an "invisible church of the elect", made up of those predestined to be saved,