Well the coastal towns and coastal lands near the cities would have been Christian in Dalmatia, The Dalmatians most of whom had fled to the coast were after all Christians aligned with Rome, even producing a pope, john the forth who opened relations with the Croats and sent missionaries to them and apparently the Croats in Dalmatia converted more quickly compared to the other Croats especially the noncoastal Croats who seemed to have taken the longest to convert.