 During the 11th and 12th centuries, the nomadic confederacy of the Cumans and Eastern Kipchaks dominated the territories between present-day Kazakhstan, southern Russia, Ukraine, southern Moldavia and western Wallachia.It is a subject of dispute whether elements of the mixed Daco–Roman population survived in Transylvania through the Dark Ages to become the ancestors of modern Romanians or whether the first Vlachs and Romanians appeared in the area in the 13th century after a northward migration from the Balkan Peninsula.There is also debate over the ethnicity of Transylvania's population before the Hungarian conquest.