Enslavement of humans has existed in all existing historical societies and cultures. There are different words expressing the name slave in the Turkish language. These are the words kul, me, halayik, concubine and odalisque for captives and female slaves. In addition, there are different names for the word slave in various nations. The aim of this study is to reveal how the slave past/identity of the Mamluks was reflected in their diplomacy and the reasons for this. When we look at the history of the state as a whole in the context of the subject we see that the slave past of the Mamluks is reflected in the diplomatic activities carried out between the Ilkhanids and the Armenians just before the reign of Sultan Baybars, during his reign and a little later. The Mamluk Sultans were undoubtedly mamluks (slaves) before becoming Sultans. However, a slave freed by his master is no longer considered a slave. Anyone who does not shed his slave identity cannot be a Sultan. As a matter of fact, no Sultan who held power sat on the throne as a slave. Although the name of the original Mamluks, which constitute our subject, technically means slave, it actually took its place in history with a meaning of power and superiority rather than a slave or low level meaning. The time period in which we discuss the subject; It was the period when the Mamluks put an end to the influence of the Ayyubids in Egypt and Syria and began to firmly establish the foundations of their state. At this time in the Middle Ages, the mamluk system was widely used. So much so that there was an understanding that today's slave is tomorrow's sultan. The Mamluks never felt ashamed of being slaves in the past. As a matter of fact, they found it more valid to be able to assert themselves with their strength and skills and thus take part in high-level positions than to be from a noble lineage. So much so that among the Mamluks, with the exception of those who did not have a slave identity, they could neither be a high-ranking official nor a sultan. Unlike the Mamluks, the Mongols gave great importance to lineage and nobility.