Grounds for invalidating
Some worry that their children will be considered illegitimate if they get an annulment.
However, Canon 1137 of the Code of Canon Law specifically affirms the legitimacy of children born in both valid and putative marriages (objectively invalid, though at least one party celebrated in good faith).
is a judgment on the part of an ecclesiastical tribunal determining that a marriage was invalidly contracted or, less frequently, a judgment determining that ordination was invalidly conferred.
A matrimonial nullity trial, governed by the church's canon law, is a judicial process whereby a canonical tribunal determines whether the marriage was void at its inception (ab initio).
Because the nullity of the marriage is clear from the circumstances there is no need for a canonical process to issue a Declaration of Nullity.In this case the contracting parties are free to marry, provided the natural obligations of a previous union are discharged.Prior to the reforms, a declaration of nullity could only be effective if it had been so declared by two tribunals at different levels of jurisdiction.Although, before beginning a process before an Ecclesiastical Tribunal — it has to be clear that the marriage cannot be rebuilt.