The authors of far from numerous works, which attempted to trace the development of the Russian Lithuanistic (i.e. the historiography of a history of Great Duchy of Lithuania (GDL) before the Union of Lublin (1569) usually disregarded such famous historian as S.M. Solov'ev, who had played a prominent role in Russian historical studies. In his case the scholars usually referred to the "Moscow-centricity" of his historical consciousness. But the painstaking study of this consciousness gives opportunity, from one side, to notice some struggle of different approaches to historical knowledge and, from another side, to see Solov'ev among the leading Russian lithuanists.