Etiquette is a word of French origin meaning manner of behavior. It includes the rules of politeness and courtesy accepted in society. Diplomatic etiquette originated from court etiquette, since it was at royal courts that foreign embassies were received.

In the early Middle Ages, the ceremonial of international communication was decisively influenced by solemn and magnificent rituals, whose purpose was to convince of the power of their country, to demonstrate its wealth, strength and superiority. Later, when issues of cooperation between states began to play a major role at court, diplomats had to be even more punctual and strict in observing all the rules of etiquette, since they represented not so much themselves as their country. Gradually, in order to avoid conflicts that could flare up due to real or imaginary insults, the forms of official contacts between representatives of different states became more and more regulated. Violation of the rules of international politeness can damage the authority and prestige of the state.