Ivan Bohun

Ivan Bohun (, Iwan Bohun) (died 1664) was a Ukrainian Cossack colonel. Close associate and friend of Bohdan Khmelnytsky, he opposed both the pacts with Polish-Lithuanian Commonwealth (Treaty of Hadziacz of 1658) and with Tsardom of Russia (Treaty of Pereyaslav of 1654).

Biography
Bohun was born in Ukrainian Szlachta family. He took part in the Khmelnytsky Uprising against Polish rule in Ukraine. In June 1651 he was elected colonel of troops of Bratslav and took part in the Battle of Berestechko against Polish troops led by King Jan II Casimir, which the Cossacks lost. Surviving the defeat he regathered his forces and in June 1652 took part in the battle of Batih. In this instance the Cossacks were successful; the Polish commander Marcin Kalinowski was killed and the future hetman Stefan Czarniecki barely escaped with his life. The Polish defeat was complete and allowed the Cossack forces to start a successful offensive and effectively gain control over large parts of Ukraine. Until 1657 Ivan Bohun also led his forces in minor skirmishes against Polish forces, notably at Bratslav and Uman. He also fought against the Crimean Tatars who had switched sides in the effect of the Treaty of Zboriv of 1649 (they were initially allied with the Cossacks but supported the Commonwealth in later year).

Initially Bohun opposed the Treaty of Pereyaslav of 1654. After the Battle of Konotop, Ivan Bohun led an armed pro-Russian uprising against his former ally near Konotop Ivan Vyhovsky and defeated his army in the autumn of 1659.

After being captured by the Poles in 1663, Bohun was offered freedom in exchange for taking part in a new military campaign against the Tsardom of Russia. During the retreat after the disastrous Siege of Hlukhiv Bohun was executed by a firing squad for handing over important military information to the besieged Russian garrison.

Legacy
Ivan Bohun became a popular Ukrainian folk hero, immortalized by Henryk Sienkiewicz in a novel With Fire and Sword and Jerzy Hoffman's movie with the same name where character Jurko Bohun was loosely based on him. Ivan Bohun is also well described in Bohun, a modern, historical novel about Polish-Cossack wars, written by Jacek Komuda.

His death is still commemorated annually in Lviv.