Pedzisa mutsara unotevera: Panenge pakarepo pashure pokuenda kwaHaruni, Nikephoros akatyora miganhu yorugare kupfurikidza nokusimbisazve nhare dzapamuganhu dzakaparadzwa nokumisa kubhadhara mutero. Zvisinei, kunetsekana kwaHarun nokupandukira muKhurasan, uye kufa kwake makore matatu gare gare, kwakadzivisa kutsiva pamwero wakafanana ne806. Kurwisa kuduku kwakapfuurira kumativi ose ari maviri, asi
Hondo yevagari vemo yeAbbasid, iyo yakatanga mushure me809, uye kushushikana kweByzantine nevaBulgaria kwakabatsira kumisa kupokana kukuru kweArabhu-Byzantine kwemakumi maviri emakore anotevera.