Mezue ahịrịokwu na-esonụ: A chọtara ọlaọcha nke onwe ya na Russia nanị na narị afọ nke 18, ya mere akụnụba ego nke mba ahụ dabere kpamkpam na ntinye nke ọla a, nke bụ isi n'ụdị mkpụrụ ego, site na mba ọzọ. Na narị afọ nke iri na abụọ, mbata a malitere ibelata site na ọdịda anyanwụ (ikekwe n'ihi ike nke iwu ndị knight German na Baltic States na mmalite nke esemokwu oge niile n'etiti ha na ndị isi ọdịda anyanwụ; lee isiokwu <unk>Ostsiedlung<unk>), na narị afọ nke 13 site na ọwụwa anyanwụ (ikekwe, nke a kpatara site na
Ndị Tatar-Mongol wakporo).