The article analyzes various interpretations of legal provisions relating to disposition of a testator’s property, a process that can prove to be highly problematic, in particular in cases with complicated legal status. The problem discussed is a very important one from the point of view of legal doctrine, jurisdiction and social equity. The article focuses on jurisdictions that exercise an equitable doctrine, known as dependent relative revocation. This concept involves numerous legal institutions and mechanisms that refl ect or, in principle, should refl ect the testator’s intention to make a valid will, in particular modifications to the existing will (codicil), the principle of favor testamenti and legal interpretations that tak...