Linguist Ján Stanislav believed the city's Hungarian name, ''Pozsony'', was attributed to the surname Božan, likely a prince who owned the castle before 950. Although the Latin name was also based on the same surname, according to research by lexicologist Milan Majtán, the Hungarian version was never officially represented in official records during the time in which this prince would have lived. The three versions, however, were all related to those found in Slovak, Czech, and German: Vratislaburgum (905), Braslavespurch, and Preslavasburc (both 907).