Petrarch stays in the church and climbs the rungs to the cardinalate, gets elected.
Tamasz Bakocz gets elected instead of Leo X.
Savonarola accepts the cardinal's hat offered him by Alexander VI, gets elected in place of Pius III or Julius II...
Mazarin never became a French citizen so that he would still be considered in conclaves as an Italian not a French pope
@Vitruvius a thread ATM about Innocent X NOT being elected