<prompt> Qedela umusho olandelayo: Ngesikhathi soMbuso Wokuqala WaseBulgaria inqaba yayiyingxenye yohlelo lwezinqaba olwaluhlinzeka ngokuvikelwa kwePliska nePreslav, inhloko-dolobha, kanye nesikhungo senkolo saseMadara. Yabe isebenza njengenqaba encane phakathi nekhulu le-10 kuya kwele-12, uma iqhathaniswa nenkazimulo, ukuchuma kwezomnotho namandla ezempi ayenayo phakathi nekhulu le-4 kuya kwele-6. Ekhulwini le - 13 laphinde lachuma njengenhlangano yezombangazwe nezomnotho yoMbuso waseBulgaria owavuselelwa. Lapho abaseByzantium bethatha okwesikhashana ukulawula iPreslav ngo-1278 ngesikhathi sokuVukela kuka-Ivaylo, iShumen nayo yathola ukubaluleka njengesikhungo sokuphatha nesempi. Le nqaba yaqhubeka ichuma ngekhulu le-14 kwaze kwaba yilapho amaTurkey ase-Ottoman eyithatha ngo-1388 ngesikhathi sokuhlasela kwe-Ottoman.  <response>: umkhankaso we-vizier wabo wokuqala u- Çandarlı Ali Pasha. 