Is the marriage between non Catholics valid or not?

Say a couple was married in a non-catholic church. then later decided to both become catholic. Would/does the Church recognize their marriage as valid? and if NOT then would they have to live as brother and sister until they became catholic and had a catholic wedding? Would it be considered aldultry or fornication cause their marriage wasnt recognized? I just cant figure out which one is ture. i get so many mixed stories on this one. Any help would be appreciated. Thank you

Dera LC,

The Catholic Church recognizes the marriages of non-Catholics as valid. Should they become Catholics, the marriage is still considered valid.

Fr. Vincent Serpa, O.P.

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