The central theme of this master’s thesis is legal regulation of family. Family is under constant change due to the influence of the economic, cultural, social, and existential needs of individuals. Therefore, the first part of the thesis presents the evolution of the family throughout history. There is an ongoing crisis of the institution of the traditional family. Simultaneously, a fundamental liberalization of the family is in process, especially on the European and the American continent. Types of family and their definitions differ depending on the country of their origin. The second part of the thesis focuses on the historical overview, as well as comparative solutions for arranging family communities in the Republic of Croatia and Hungary. The above-mentioned countries have a common historical background, and they are both currently serving as member states in the European Union. The main objective of the European Union was to create a common internal market. However, there is evidence of the European Union’s turning towards the protection of individuals and their rights. Such developments have also led towards the process of Europeanisation of various legal fields. The thesis will also analyse relevant legal sources, as well as the case-law of the Courts which is essential, especially in the domain of family law as a particularly susceptible legal field.