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If there is a conflict between a pre-nuptial agreement and the Will, the Probate Court will have to make a decision as to which to hold up. Under current Texas doctrine, the prenuptial agreement preempts the Last Will and Testament if there is a conflict, meaning it is considered superior. See HERE.
As such, the prenuptial agreement normally will supersede the Will if the Will conflicts with the prenuptial agreement. Thus, it would be a good idea to ask for whatever someone in your situation wants to be guaranteed to you to be put into the pre-nuptial agreement, and not to place one's hope into the Will.
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