Some theories, including the “double conquest” theory of archaeologist Gyula László, attribute it to the arrival of new settlers, such as early Magyars, but this is still under debate.
Mõned teooriad, sealhulgas arheoloog Gyula László "topeltvallutuse" teooria, omistavad selle uute asunike saabumisele, nagu varajased madjarid, kuid see on veel vaidlusküsimus.