The law of succession is a part of civil law and its main goal is to secure the succession during generations. On somebody's decease there is come to gaining inheritance in the same point. The inheritance proceedings begin ex offo subsequently. The purpose of my thesis is to analyse the institution of testate succession. Actually there are two possibilities of inheritance succession. The first is an intestate succession and the alternative is constituted by a testate succession. Although in the Civil Code there is mentioned the intestate succession in the first place, testate succession holds the first position in practice. In fact legal heirs succeed if a deceased doesn't leave any testament. The exception is represented by forced heirs. The legal grounds to the testamentary succession there is a testament, sometimes called a will of deceased, too. It is necessary to write a testament in compliance with provisions of the Civil Code to be valid. The thesis is composed of five chapters, each of them dealing with different aspects of testate succession. Chapter One is introductory and there is also explained the historical context of testate succession. Chapter Two is named "Preconditions of succession", at first it defines basic terminology used in the thesis, for example the subjective law of succession and...