Military orders are a topic that has aroused great interest among researchers for centuries, both in the world and in our country. Shrouded in a veil of mysticism, they marked the Middle Ages and became an inexhaustible source of various myths and legends since their foundation at the end of the 11th century. century until today. How to distinguish what is a real fact and what is just a popular rumor? This is one of the biggest problems when it comes to a topic like knighthoods. There is not much literature, even fewer sources, but what has been recorded unravels a particularly interesting history of these lines in our area. This paper deals with the evaluation of the literature related to the knightly orders in Croatia, more specifically, the knightly orders in the area of ​​the middle Adriatic and the issue of their historical-artistic legacy in that area. The original idea of ​​the work was to list the medieval cultural heritage of these orders in the central Adriatic, but through the research of sources and literature I came across the problem that there is almost no concrete heritage. In contrast to continental Croatia, where the presence and activity of knightly orders is much more obvious (and more elaborated), much less is known about their activities in the Adriatic. That is why this paper will present an overview of the activities of the Templars and Ivano-Frankfurts in the Adriatic (both in the world and in Croatia in general) since their arrival at the beginning of the 12th century. century, until their disappearance at the end of the 16th century, and provide a basis for some future research based on already known and published literature. In addition, the paper will present the basic features of the architecture of the rows themselves and the specifics that appear in the design of individual architectural elements. Furthermore, what is the basis of this work, I will try to valorize and look critically at the literature and the advantages and disadvantages that I encountered during the research. Also, a key part of the paper will be the part that builds on the literature criticism, and represents the problem of the historical-artistic heritage of the orders in the area of ​​the central Adriatic, where I will try to point out the problem of the lack of material remains related to the knightly orders in numerous central Adriatic localities, and I will valorize what has succeeded remain preserved to this day.