<prompt> Bhala ukuqhubeka kwalesi sigaba - Ukuvukelwa kukaGeorgi Voyteh , - Ukuvukelwa kwamaSlav ePomoravlje kwaba ukuvukelwa kweBulgaria ngesihloko saseByzantine saseBulgaria ngo-1072. Kwakuwumzamo wesibili omkhulu wokubuyisela uMbuso WaseBulgaria ngemuva kokuVukela kukaPeter Delyan  <response>: ngo-1040 kuya ku-1041. 