Ramba uchiverenga ndima iyi - Mitemo yeByzantium yemumba yakashanduka mushure mekufa kwaBasil uye kwakatevedzana kupandukira kwakakundikana, chikuru chacho chakatungamirwa naPeter Delyan. Chiremera cheumambo chakaderera mushure mekukundwa zvine njodzi kwemauto paManzikert vachipesana nevatorwa veSeljuk, uye vakawedzera kuvhiringidzwa neCrusades. Izvi zvakadzivisa kuedza kweByzantium kuita kuti vanhu vave vechiGiriki uye zvakaita kuti pave nenzvimbo yakanaka yokuti vanhu vazoita mhirizhonga. Muna 1185 madzishe evaAsen Ivan Asen I naPeter IV vakaronga kumukira kukuru
uye akabudirira mukudzorera nyika yeBulgaria. Ivan Asen naPeter vakavaka hwaro hweHumambo hweChipiri hweBulgaria neguta rayo reTarnovo.