Thesis titled Medieval Heritage of Archaeological Sites, Architectural Monuments and Fine Arts in the Međimurje Region presents a historical overview of Međimurje region with the main focus on cultural and artistic activity, as well as providing an overview of the wider archaeological context for the purpose of an introduction to the medieval archaeology and art history of Međimurje. The main part of the work is a catalogue review of the medieval heritage of archaeological sites, architectural monuments of sacred and profane character, which includes an analytical review of the remains of artistic and cultural heritage. Archaeological sites and architectural monuments were systematized and evaluated in the context of today's settlements with regard to geographical factors, which created the basis for developing further ideas about topics such as key traffic routes, the temporal continuity of archaeological sites and their examined populations through the past, as well as ecclesiastical and political relationships that are reflected in the development of the urban network throughout the medieval Međimurje. The catalogue provides an overview of the total previous research of archaeological sites and architectural monuments with regard to temporal continuity, research methodology and existing literature and archival documentation. Regarding that, the topics of earlier scientific problems are elaborated on examples, while current problems are pointed out in terms of existing literature, the presentation of monuments, and related to that, the public concern about important questions related to Međimurje's medieval history and heritage. The detailed analysis of the monumental and artistic material, with critical attitude towards the work of previous researchers on the examples of certain monuments of fine art provides a space for new interpretations, whereby the medieval artistic heritage of Međimurje can be studied and viewed in the context of cultural and artistic activity with a more selective methodological approach, in the local and wider regional context.