Register of the Sumy regiment of 1662

The 1662 register of the Sumy Cossack Regiment, compiled under the leadership of Voivode Kuzma Polyanskyi, is a valuable source for studying the demographics and social structure of the regiment. This register contains not only the names of Cossacks and burghers, but also detailed information about their families, including children, brothers, brothers-in-law and other relatives. The document also provides a description of the armory and fortifications of the city of Sumy, which makes it possible to assess the defense capability of the region in the event of a threat of attack. This register is an important tool for researching family ties and social relations in the regiment.