Wills. Neither the Civil Code nor any other statute sets forth any specific requirements for capacity to make a will. Therefore, the soviet jurists deem any person who is generally competent to enter into legal transactions (Civil Code, Section 8) capable of making a will. Thus, minors under the age of eighteen years and persons adjudged unable to manage their affairs because of mental disease or weak-mindedness do not have testamentary capacity. Likewise, a will executed by a testator while "in a state of mind which precluded his understanding the significance of his acts," has no validity (id., Section 3r).
SOVIET LAW OF INHERITANCE: II,
Mich. L. Rev.
Available at: https://repository.law.umich.edu/mlr/vol45/iss4/4