Legal inheritance, alongside with testamentary inheritance is the basis for inheritance in the Republic of Croatia. In general, it can be said that the heir is a person to whom at the time of the opening of the inheritance the whole estate or an aliquot part of it passes. In order for someone to achieve the status of legal heir, it is necessary to be connected to the testator in a certain way. Some of the prerequisites that must be met when inheriting by law are blood relationship, marital relationship, extramarital relationship, registered and informal partnership, and adoption. Furthermore, there are principles in the law of inheritance that establish hereditary orders. The legislature prescribed inheritance orders to determine the relationship between potential legal heirs and to determine the order of reference to inheritance and the share of inheritance itself. Although only four inheritance orders are listed in the law of inheritance, there can be unlimited number of inheritance order. Also, one of the novelties in legal inheritance is the inclusion of same-sex partners in the circle of legal heirs by the Law on Life Partnership of Persons of the Same Sex in 2014. The said law significantly improved the inheritance position of same-sex partners who until then could inherit their partners only on the basis of a will.