Supreme Court allows inheritance claim by heirs against a will, rejecting the testator's argument of lack of capacity.

The Supreme Court of Poland accepted the cassation appeal filed by the heirs against the lower court's judgment. The heirs argued that the testator lacked mental capacity to make a valid will, while the opposing party maintained the document was executed while the testator was lucid. The court ruled that the evidence presented by the heirs was sufficient to establish the testator's incapacity at the time of signing, thereby invalidating the will and allowing the inheritance claim to proceed.