He ordered Wycliffe bones to be dug-up, crushed, and scattered in the river
At that time, the pope want to maintain the purity of the biblical scripture and do not want it to be translated into other language.
Wycliffe on the other hand , decided to translate the scripture into English language. The translation made the pope became infuriated and condemned Wycliffe as a heretic and ordered Oxford to dug up his bones, crush them and scatter them in the river.
