The subject of my diploma thesis is to show in detail and describe the basic institutes of inheritance with regards to the autonomous will of the testator, according to the Civic Code after the recodification in force since 1.1.2014. With regards to significant and extensive changes of the means, with which the testator can manage the treatment of the inheritance mortis causa, I considered this subject relevant and that is why I chose it. I tried to supplant a wholesome view of the possibilities open to testators in case they decide to change the division of their property out of the lawful hereditary succession. The thesis is divided into six chapters that contain the history of inheritance in our country, basic terms, reasons for the crea...