EN
Despite the fact that the Prague bishopric was subordinated to the metropolis of Mainz and that newly elected candidates were invested with offi ce by the German ruler, most Czech researchers believe that the designation of a candidate for this position was an elementary right of the Bohemian duke. However, some authors suggest that that the German king/emperor could have had a decisive infl uence in the earliest period. This discrepancy is due to the dearth and contradictory purport of the earliest sources. The reanalysis of written sources pertaining to the fi rst bishops of Prague has demonstrated that the Chronica written by Cosmas, the dean of the Prague, is unreliable as regards the tenth and the early eleventh centuries. The analysis has also shown that although an independence of a Bohemian duke in the selection of candidates for the position of the bishop of Prague is more conceivable starting from Adalbert, the fi rst bishop Dietmar was likely the nominee of Otto II, as indicated by the political context of the years 975–976 and the course of the Bohemian-German conflict.