Bayan 1328 Andronikos III ya ci nasara kuma ya kori kakansa.Serbia da Rumawa sun shiga wani lokaci na mummunan dangantaka, kusa da yanayin yakin da ba a bayyana ba.A baya can, a cikin 1324, ya sake saki kuma ya kori matarsa ​​da 'yar'uwar Stefan Anna Neda, kuma ya auri 'yar'uwar Andronikos III Theodora.A lokacin ne Sabiyawan suka kwace wasu muhimman garuruwa irin su Prosek da Prilep har ma sun yiwa Ohrid kawanya (1329).Dukansu dauloli (Byzantine da Bulgarian) sun damu matuka game da saurin ci gaban Serbia kuma a ranar 13 ga Mayu 1327 sun kulla yarjejeniyar zaman lafiya ta adawa da Serbia.Bayan wata ganawa da Andronikos III a shekara ta 1329, sarakunan sun yanke shawarar mamaye abokan gaba nasu;Micheal Asen III ya shirya kai hare-haren soji na hadin gwiwa kan Serbia.Shirin ya hada da kawar da Serbia sosai da kuma raba shi tsakanin Bulgaria da daular Byzantine.Yawancin sojojin biyu sun yi sansani a kusa da Velbazhd, amma duka Michael Shishman da Stefan Dečanski suna tsammanin ƙarfafawa kuma daga 24 ga Yuli sun fara tattaunawar da ta ƙare tare da tsagaita wuta na kwana ɗaya.Sarkin sarakuna yana da wasu matsalolin da suka rinjayi shawarar da ya yanke don sasantawa: rundunar sojojin ba su isa ba kuma Bulgarian sun kasance karancin abinci.Dakarunsu sun watsu a cikin kasar da kauyukan da ke kusa da su don neman abinci.A halin da ake ciki kuma, samun gagarumin ƙarfafawa, mayaƙan doki na Catalonia 1,000 ɗauke da muggan makamai, ƙarƙashin jagorancin ɗansa Stefan Dušan a cikin dare, Sabiyawan sun karya maganarsu kuma suka kai hari ga sojojin Bulgaria.a farkon ranar 28 ga Yuli 1330 kuma ya kama sojojin Bulgaria da mamaki.Nasarar da Serbia ta samu ya haifar da daidaiton iko a yankin Balkan na shekaru ashirin masu zuwa.