Complex sentence: But she did not wish to become a nun, nor did her husband whish her to be, and they sent an appeal to the Pope in Rome to ask if the she could be released from her promise and continue her marital obligations.
Split into simpler sentences: But she did not wish to become a nun, nor did her husband wish her to be. They sent an appeal to the Pope in Rome to ask if the she could be released from her promise and continue her marital obligations.