Mogilev Governorate
Since the 12th century, the area belonged to the Principality of Smolensk, and since the end of the 12th century — to its vassal state, the Principality of Mstislavl. Until 1359, it belonged intermittently to the Grand Duchy of Lithuania and to Smolensk lands. After 1359, together with the whole Principality of Mstislavl, it became part of the Grand Duchy of Lithuania, and subsequently of Poland. The Principality of Mstislavl was abolished in 1483, and Khislavichi is first mentioned in 1526. In 1772, as a result of the First Partition of Poland, the area was transferred to Russia and included in the newly established Mogilev Governorate. It belonged to Mstislavsky Uyezd. In 1919, Mogilev Governorate was abolished, and Mstislavsky Uyezd was transferred to Smolensk Governorate. On 3 March 1924, a half of Mstislavsky Uyezd was transferred to Byelorussian Soviet Socialist Republic, and seven volosts, including Khislavichi, were left in Smolensk Governorate.