Marriage and divorce outside the catholic church?

If two people were married outside the catholic church, one being a catholic and the other a non catholic but then had their marriage blessed in the catholic church, after being divorced do they need to get an annulment or is this marriage not recognized in the catholic church for a future relationship?

When an invalid marriage is “blessed” by the Church that means that the couple has exchanged vows in the Church and their marriage is from that point forward valid. Should they later divorce and want to marry another person in the Catholic Church they would need an annulment.

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