EN
The study is concerned with the problem of the Hungarian administration of the Duchy of Styria in the period 1254–1260. As a result of the almost complete absence of study of this theme in European historiography, the study has the basic aim of approaching this period of the Central European history of the second half of the 13th century. The text of the study is based mainly on content analysis of surviving diplomatic and narrative sources from the Holy Roman Empire. The most notable result of the test is clarification of the relationship of representatives of the Hungarian administrative authorities in the Duchy of Styria with ecclesiastical institutions such as monasteries, and with the secular elite: aristocrats, officials.