Kammala jumla mai zuwa: An kafa Catepanate na Ras tsakanin 971 <unk> 976, a lokacin mulkin John Tzimiskes (r. 969 zuwa 976). An sanya hatimi na "strategos" na Ras zuwa zamanin Tzimiskes, yana mai yiwuwa ga magajin Tzimiskes Nikephoros II Phokas ya sami karbuwa a Rascia. "Protospatharios da katepano na Ras" wani gwamnan Byzantine ne mai suna John. Bayanai game da "katepano" na Ras a lokacin mulkin Tzimiskes sun ɓace. Kasancewar sojojin Byzantine ya ƙare ba da daɗewa ba tare da
yaƙe-yaƙe tare da Bulgaria, kuma an sake kafa shi ne kawai c. 1018 tare da ɗan gajeren lokaci na Sirmium, wanda, duk da haka, bai faɗaɗa sosai cikin Rascia daidai ba. Bosnia ta fito a matsayin jihar bayan mutuwar Časlav.