The effect of the loss of the status of relative on the validity of testamentary dispositions was subject to a drastic change in the law in the course of the ErbRÄG 2015: Whereas under the old legal situation, the testamentary disposition in favor of a former relative remained in principle valid and was only accessible to a rather hopeless challenge on the grounds of motive error - due to the strict requirements of the judicature regarding the burden of proof - under the current legal situation, the testamentary disposition is revoked eo ipso pursuant to Section 725 ABGB upon the dissolution...