 Ramba uchiverenga ndima iyi - Muna 705, Ktenia yakava chikamu cheHumambo Hwekutanga hweBulgaria apo nzvimbo yeZagore yakapiwa Tervel neHumambo hweByzantine. Apo Humambo hweBulgaria hwakagadzwazve pakupera kwezana ramakore rechi12, Ktenia yakanga irizve pasi pehutongi hweBulgaria kusvikira yakundwa nemaByzantine panguva yeKumuka kweIvaylo12771280. Nhare yacho yakadzorerwa neBulgaria mushure mehondo yakabudirira nemutongi Theodore Svetoslav r. 13001321 muna 1304. Zvisinei, yakarasika mukati menguva yekusava nechokwadi mushure mekufa kwekutanga kwemwanakomana wake George II Terter r. 13211322. Ktenia yakakurumidza kutorwazve namambo mutsva Michael Shishman r. 13231330 muna 1324. Mushure mekumwe kubatwa kweByzantine kwenguva pfupi pakati pa1330 na1332, yakatorwazve nemaBulgaria mushure meHondo yeRusokastro musi wa18 Chikunguru 1332. 