EN
The main goal of the article is to deepen knowledge of ceremonies and audiences of Constantine and Methodius with the 9th century Popes in their capital city, Rome, and in their residences. The abovementioned brothers namely visited Pope Hadrian II (867 – 872) and John VIII (872 – 882). The author of the article takes a look at the possible activities, ceremonies of a reception, and further acting of Constantine and Methodius in Rome. The authors tries to fill the gap in existing primary literary sources by help of indirect primary literary sources and knowledge obtained by architectural research. The Salonica brothers could have officially met with the Popes in the representative places, i.e. in the Vatican Complex, Lateran Palace, or in the important churches of Rome.