During the Christianization of the early Slavic realms at the turn of the tenth century, a specific type of noble passion-bearing saint came about. Four saints were promoted in short succession in the western, north-eastern, and south-eastern Slavic realms in the span of less than a hundred years. All four were promoted as noble passion-bearing saints and prototypes of the good Christian ruler. These early Slavic saints share many resemblances, and their hagiographies seem to be interdependent. This commonality might be due to them all emerging from the Byzantine tradition and sharing the same hagiographical “typos.” As such, the saints’ hagiographies provide an opportunity to explore not only the relationship but also the internal communications between early Slavic Christian and Byzantine literature as they are expressed in these texts. This article assesses this interaction and traces the shaping of a typology of early Slavic passion-bearing saints.