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In page John Wycliffe:

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Wycliffe then wrote his De incarcerandis fedelibus (On the Incarceration of the Faithful), with 33 conclusions in Latin and English. Wycliffe did not think that incarceration should be a permitted form of excommunication.[1]: xxvii  In the book he demanded that it should be legal for the excommunicated and incarcerated to appeal to the king and his council against the excommunication or incarceration.[citation needed]