Has a pope ever been corrected publicly by a non-cleric in the presence of cardinals because of his immoral behavior?
As we all know, popes are not immune to living sinful lives. In fact, several have lived in serious sin for many years. The Church has had many holy popes, but there have been some very bad and sinful popes also.
What I mean by a non-cleric is a Catholic faithful who is not a deacon, priest, bishop or cardinal, but may be a layperson, nun or religious brother (not ordained).