THE COMPARATIVE ANALYSIS OF THE TYSIACHNAIA KNIGA OF 1550 AND THE DVOROVAIA TETRAD OF THE 50 <sup>th</sup> YEARS OF THE 16 <sup>th</sup> CENTURY
The Tysiachnaia Kniga of 1550 and the Dvorovaia Tetrad of the 50 th years of the 16 th century were presented more than one hundred years ago, but still there is ongoing dispute about the time and purpose of their appearance and the composition of the landowners listed in them. Based on the new archival and published sources the author examines the date of the Dvorovaia Tetrad, the problem of “Thousand Reform” of 1550 practical implementation, the purposes of their compilation. The author compares the landowners's lists from the Tysiachnaia Kniga and the Dvorovaia Tetrad, plans ways of further research and reconstruction of the Tsar court of 1550 - the beginning of the 1560 th years.