you cannot break your marriage vows with someone that you were not able to make them in the first place....you discover that your wife was born a male and later in life had a transexual operation giving him female genetalia.......invalid marriage
it is discovered that your husband was mentally incompetant to make such a commitment.....invalid marriage your wife/husband declares that he/she never intended to have children.....could be invalid marriage it is discovered that one of you is unable, physically or mentally to consumate the marriage....could be invalid marriage
an annulment does not dissolve a marriage, it declares that there was not a valid marriage in the first place...
by the way, it is Protestants, not Catholics that allow remarriage after a legitimate divorce.....not biblical.
Therefore; logically; if there was some diddling between the 'marriage' and the 'annulment'; there'd be some FORNICATION to be forgiven!
ALL of them?
by the way, it is Catholics, not Protestants, that came up with something called an ANNULMENT to get out of a marriage.