What prevented Wycliff from being executed?

John Wycliffe (1320-1384) was a theologian and early proponent of reform in the ... under the penalties executed by the State, and wrote his De incarcerandis fedelibus, in which ... In similar fashion the poor priests were hindered in their work.

answer; i believe its a

the russian revolution of 1917 involved the collapse of an empire under tsar nicholas ii and the rise of marxian socialism under lenin and his bolsheviks.