The Faculty of Law and Political Science discussed a master's thesis in private law, tagged with: Grandfather's inheritance / a comparative study of the student Firas Muhammad Fathallah, and the supervision of a. M. Dr.. Nashwan Zaki Suleiman from the University of Mosul. The study aimed to explain the concept of inheritance, its legitimacy, its causes and elements, and to explain the concept of the grandfather’s inheritance and the legality and methods of bequeathing and withholding it, and to explain how the grandfather inherited in his meeting with the brothers and sisters and the special issues in the grandfather’s inheritance with the brothers and sisters. The study concluded that the majority of Muslim jurists agree As well as the front that the estate includes money and financial rights, with the exception of the Hanafi jurisprudence, limiting it to money only. And the difference of jurisprudence schools in defining the types of kinship who are entitled to inheritance, and the jurisprudence schools differed regarding the concept of the inheritor grandfather, as the concept of the majority of jurists was defined by the correct grandfather, the father of the father and that Ola, while the frontal doctrine held that the concept of the grandfather is absolute, which is the wording that the Iraqi legislator mentioned in the status law Personal.