EN
This paper deals with three names of the successor to the throne after Mojmír I, ruler of Great Moravia, in the historical records: *Rastislavъ, *Rʼästicь and *Rasticь. The Late Proto-Slavic personal name *Rastislavъ of the Great Moravian ruler is doubtful. The names *Rʼästicь and *Rasticь are Central Slovak because Proto-Slavic *-ītjo > West Slavic (including Central Slovak) -icь and Proto-Slavic *orst- > South Slavic as well as Central Slovak Rast-, and Central Slovak ra- > rʼä- > rä- (cf. Central Slovak räsť, riasť). This fact has many historical consequences, the most important of which is the origin of the so-called Rastislav of Moravia.