Russia would not agree to admit them straight away, assuming that the war with Poland would start. Nevertheless, in 1654, the Pan-Russian Assembly of top Clergy and Landowners headed by the Tsar (Zemsky Sobor), which was the representative body of power of the Old Russian state, decided to include a part of the Old Russian lands into the Moscow Kingdom. | Russia would not agree to admit them straight away, assuming that the war with Poland would start. Nevertheless, in 1654, the Pan-Russian Assembly of top Clergy and Landowners headed by the Tsar (Zemsky Sobor), which was the representative body of power of the Old Russian state, decided to include a part of the Old Russian lands into the Moscow Kingdom. |