Joseph P. Bradley, Johnson v. Waters (111 U.S. 640…
“ Morgan's succession undoubtedly properly belonged to the probate court of the parish of Carroll, and, in a general sense, it is true that the decisions of that court in the matter of the succession are conclusive and binding, especially upon those who were parties. But this is not universally true. The most solemn transactions and judgments may, at the instance of the parties, be set aside or rendered inoperative for fraud. The fact of being a party does not estop a person from obtaining in a court of equity relief against fraud. It is generally parties that are the victims of fraud. ”
