<prompt> Bhala ukuqhubeka kwalesi sigaba - Ngo-1040, uPeter Delyan wavukela umbuso waseByzantium eThema laseBulgaria. Ukuvukela  <response>: kwaqala eBelgrade lapho uDelyan amenyezelwa khona njengoMbusi. Waya eningizimu, wadlula eRascia naseDendra, wabe esethatha izinqaba zaseByzantium zaseNaissus naseSkopie. 