EN
The purpose of this study is the introduction of the mediation of János Esterházy in the bilateral relations of Slovakia and Hungary mentioning only a few examples due to limitations in length. In the second part of the study, the activity of Esterházy in the Jewish question is discussed; the reasons behind his voting against the Jewish law. János Esterházy considered it his main goal to forge the Hungarian minority in Slovakia together, and he imagined the life of the community in the form of a great family. The person of Esterházy is interpreted in different ways in the Slovak and Hungarian history writing. This study wishes to present these interpretations based on facts and to get them closer to each other.