EN
The paper first adumbrates the issue of coins as a source of information from which historian and other researchers can study the past. The Czech coinage of the tenth and eleventh century is shown as a very complex issue. The paper seeks to explore two of them. One is the origin of Emma Regina, whose coins were supposedly minted in Mielnik. Having presented and briefl y analysed medievalists’ hypotheses concerning the origin of Emma, the author concurred with the hypothesis of her French origin. Next, the article examines a coin referred to as denarius episcopi, i.e., minted by an unnamed bishop. Having emended the coins’ inscription, S. Suchodolski has resolved the problems the source hitherto posed in historiography.