The study discusses Libor Jan’s hypothesis that the Rajhrad Monastery was not only founded as an independent institution, but was also a collegiate chapter and not a Benedictine cloister. Jan later declared Rajhrad a significant centre for the 10th century South Moravian church and even the seat of a bishop’s filial office. Although these hypotheses were insufficiently supported, they began to be accepted in the literature. However, most of the arguments in favour of these ideas can be disproven. The author examines the so-called Pseudo-Břetislav Fakes that include the Břevnov Monestary’s claim to Rajhrad and proves the authenticity of the testimony within. The conflict between the Olomouc bishops and Břevnov is also discussed, presenting the older claims by the Prague institution. The author also analyses immunity and indulgence documents, which do not show the independence of the Rajhrad Monastery. The author also doubts the church tradition lasting from the post-Great Moravia period, which is the basis for Jan’s hypotheses. and Dana Zapletalová.