Chuvashskie materinskie selenii︠a︡ Svii︠a︡zhskogo, Kokshaĭskogo, Cheboksarskogo, Kozʹmodemʹi︠a︡nskogo, T︠S︡ivilʹskogo, I︠A︡drinskogo, Kurmyshskogo i Simbirskogo uezdov pervoĭ poloviny XVIII veka

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