<prompt> Pedzisa mashoko anotevera: Maererano naProcopius De Aedificiis, 4.3.5, Demetrias akavakwazve naJustinian I r. 527565, asi humwe uchapupu hunonongedzera kukwaniso yokuti upenyu hwakare hwomumaguta hungave hwakanga hwatoguma pakuvamba kwezana ramakore rechi6 T.E. Gregory. Demetrias anotaurwa naHierocles muzana ramakore rechitanhatu. Nharaunda yayo yakagadziriswa nedzinza reSlavic reBelegezitai muzana ramakore rechinomwe rechisere, rakapambwa nekupambwa nemaSaracen muna 9012, uye nevapanduki panguva ye  <response>: Kumuka kwaPeter Delyan muna 1040. 