Privileged witnesses of history, seals and emblems reflect the complexity of social life and bring in contemporaneity facts and actions that enrich the knowledge about the medieval times.

The reign institution, in order of heraldic rules is expressed by:

• representation of the coat of arms
• the materials from which is made the seal
• forms of attaching the seal
• position of the royal seal on documents with many seals

Only kings, emperors, popes or cities had the right of coinage. At the same time, popes, kings, lords, free cities, judicial officers, ecclesiastical dignitaries, religious orders, municipalities, corporations secular courts, bourgeois, artisans, all had their seals, which only authenticated acts in which they appeared. The majority of people could not read or write, the seal served in these conditions as a signature. He was easily recognizable and difficult to imitate.