The theme of this rigorous thesis is a "Testamentary succession in Roman law and its reflection in Czech law." The topic I have chosen both because of his interest, since the institute inheritance affects each of us and testament is a tool for the testator to dispose of their property on their own will. Another reason for choosing this theme is a recent recodification of private law. The aim of this work is to evaluate the influence of Roman law on legislation applicable in the territory of the Czech (Czechoslovak) republic since its inception (1918) to the present. This thesis is divided into eight chapters. The first two chapters are general initiation into the issue of inheritance law. The third chapter deals with testamentary succession...