Nyorera kuenderera kweiyi ndima - Zuva rekutanga rinogoneka rekupinda kweByzantine munyika dzeSerbia nekugadzirwa kwedunhu iri munenge muna 971, apo mauto eByzantine akakunda Bulgaria
uye vakadzorera hutongi hweByzantine hwepamusoro mukati meSoutheastern Europe, kusanganisira nyika dzepakati dzeSerbia, sezvakapupurirwa ne "Chronicle of the Priest of Duklja". Chimwe chezvikamu zvitsva zvokutonga chaiva Catepanate yeRas. Yakagadzwa senhare yeByzantine munyika dzeSerbia, asi nzvimbo yayo yekutonga haigoni kunyatsozivikanwa. Catepanate yakagara kwenguva pfupi, pamwe chete nokutonga kweByzantium mune dzimwe nyika dzeBulgaria neSerbia. Mushure mekufa kwamambo John (976), kumukira kwakabudirira kwakatanga mumatunhu eSouth Slavic eByzantine Empire, inotungamirwa naCometopuli, zvichikonzera kuparara zvachose kwesimba reByzantine mudunhu nekudzorerwa kweHumambo hweBulgaria.