Hlukhiv (, ) or Glukhov () is a small historic town on the Esman River. It is a city of regional significance in the Sumy region of Ukraine. Hlukhiv is administratively incorporated as a city of oblast significance. Hlukhiv Municipality includes Hlukhiv and the village of Sliporod. Hlukhiv also serves as administrative center of Hlukhiv Raion but does not belong to the raion. Population: It is known for being a capital of the Cossack Hetmanate after deposition of Ivan Mazepa in 1708–1764. The former Soviet Chervone-Pustohorod air base is located near Hlukhiv. History First noticed by chroniclers as a Severian town in 1152. Sometime in 1247 Hlukhiv became the seat of a branch of the princely house of Chernigov following the Mongol invasion of Rus. Between 1320 and 1503 it was part of the Grand Duchy of Lithuania before being conquered by the Grand Duchy of Moscow. In 1618 it became part of the Polish–Lithuanian Commonwealth (in the Czernihów Voivodeship of the Crown of Poland) and was granted Magdeburg Rights in 1644 by Władysław IV Vasa. In 1648–1764 it was part of the Cossack Hetmanate within the Nizhyn Regiment (province). In 1654 the Cossack Hetmanate came under military protectorate of the Tsardom of Muscovy in accordance with the Treaty of Pereyaslav and in 1664, during the siege of Hlukhiv, the Russo-Cossack garrison of the town successfully defended against a superiour Polish army which suffered great losses during the following retreat. According to the Truce of Andrusovo along with the rest Left-bank Ukraine it was ceded to the Tsardom of Muscovy in 1667. In 1708 after realizing that Ivan Mazepa sided with Carl XII, Peter the Great order to destroy Baturyn and transfer capital to Hlukhiv. Here in November 1708 was elected a new Hetman of Zaporizhian Host Ivan Skoropadsky, while the Metropolitan of Kyiv, Halych and all Little Russia Ioasaf was forced to proclaim anathema onto Mazepa in the St. Trinity Cathedral (destroyed in 1962). Hlukhiv served as the capital of the Cossack Hetmanate in 1708-64 and until 1773 the administrative center of the Little Russia Governorate. Under the last hetmans of Ukraine, the town was remodeled in the Baroque style. Subsequently, it declined in consequence of frequent fires, so that very few of its architectural gems survived. Since the first school of singing in the Russian Empire was established there in 1738, the town has a rich musical heritage.