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
Lollardy be a derisive expression applied to various people perceived as heretics—first the Franciscans and later the followers of Wycliffe. Originally the Dutch word was a colloquial name for a group of the harmless buriers of the dead during the Black Death, in the 14th century, known as Alexians, Alexian Brothers or Cellites. These were known colloquially as ' (Middle Dutch for "mumbling brothers"), or ', from ("to sing softly"), from their chants for the dead. Middle English "" (akin to the verb "loll", "lull", the English cognate of Dutch "lollen" "to mutter, mumble") is recorded as an alternative spelling of