Luther.
UR is correct: Luther was a revolutionary.
Of course, defying the Pope and directly, willingly, disobeying him in attempting ordination of Bishops--THAT'S not revolutionary!!!
It's Justified!!!
Resisting a pope is hardly revolutionary--it was done all the time in the past. Dante, a fairly good Catholic for his day, put his pope in Hell. The Pope is only worshiped nowadays--by neo-Catholics like yourself who imagine he never errs, swallowing every novelty like divine revelation.