(2) Furthermore, a marriage can be annulled, if

1. one spouse was unconscious or had a temporary disorder of mental activity;

2. one spouse did not know that he or she was entering a marriage;

3. one spouse had been fraudulently mislead about circumstances, which, had they been known and had the essence of marriage been clear, would have deterred the spouse to enter the marriage; this does not apply, if the circumstances were about pecuniary circumstances or if it was a third party, without the knowledge of the other spouse, who had fraudulently mislead the one spouse;

4. one spouse had been unlawfully threatened into entering the marriage;

5. both spouses agreed not to have any obligations according to § 1353 Abs. 1.