Ku dhammee weedhan soo socota: Sida laga soo xigtay taariikhda Niketas Choniates, "Vlachs, oo maqlay wararka xanta ah" ee baxsashada Andronikos Komnenus (walaalkii caasiyiinta ahaa ee Emperor Byzantine Manuel I), ayaa qabtay 1164 xuduudaha Halych. Choniates wuxuu sheegay in Vlachs, Slavs iyo Cumans ay sidoo kale degeen dhulalka u dhexeeya Carpathians iyo Lower Danube, iyo iskaashiga Vlachs ee Cumans ee ka dhanka ah Boqortooyadii Byzantine ayaa si fiican loo diiwaangeliyey. Anna Comnena ayaa sheegtay in dadka Vlach ee deegaanka ay tusay "jidka marinka" ee Buuraha Balkan ee Cumans oo ku duulay dhulkii Byzantine ee koonfurta Danube Hoose sanadkii 1094. Peter iyo Asen, hogaamiyayaasha
1186 kacdoonkii Bulgaariya iyo Vlachs ee ka dhanka ahaa xukunka Byzantine, waxay ka gudbeen Danube hoose si ay gargaar uga raadsadaan Cumans xagaagii 1186 waxayna ku soo noqdeen "iyaga oo wata kaalmooyinkooda Cuman" si ay u sii wadaan dagaalka. "Cumans, oo ay la socdaan qeyb ka mid ah Vlachs, ayaa ka gudbay" Danube hoose waxayna weerareen Thrace sanadkii 1199.