 Nyorai kuenderera mberi kweiyi ndima - Guta iri rakabatanidzwawo muhondo yevagari vemuByzantine ya13411347: muna 1342 John VI Kantakouzenos akakomba Peritheorion pasina, uko vapikisi vake vomumba vakanga vachigara. Uyewo mugore rakatevera akakundikana kubata, zvino akatsigirwa nemubatanidzwa Emir Umur weAydın. Musi waJuly 7, 1345, John V naUmur vakawana kukunda kwakasimba pamupambi baron Momchil, uyo akanga asimbisa kutonga kwakasununguka mumakomo eRhodope muhondo yePeritheorion pamberi pemasvingo eguta. Zvisinei, vagari vomutaundi havana kubatanidzwa mukurwa uye vakamirira mugumisiro wacho. Muna 1355 John Asanes, gavhuna wePeritheorion, akapa guta racho kuna Mambo John V Palaiologos, mupikisi waJohn VI. Yakanga isati iri kutozosvikira muna 1357 apo John V chaizvoizvo akawana kudzora nzvimbo yacho. 