Pedzisa mutsara unotevera: Mitemo yomumba yeByzantium yakachinja pashure porufu rwaBasil uye kupandukira kwakatevedzana kusina kubudirira kwakatanga, kukuru kwacho kuchitungamirirwa 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 vazowedzera kupandukira. Muna 1185 madzishe eumambo hwaAsen Ivan Asen I naPeter IV vakaronga
kumukira kukuru uye vakabudirira mukudzorera nyika yeBulgaria. Ivan Asen naPeter vakavaka hwaro hweHumambo hweChipiri hweBulgaria neguta rayo reTarnovo.