Yakiv Barabash was a Zaporozhian Cossack Otaman (1657-58) who opposed Hetman

Hetman

Hetman was the title of the second-highest military commander in 15th- to 18th-century Poland and the Grand Duchy of Lithuania, which together, from 1569 to 1795, comprised the Polish-Lithuanian Commonwealth, or Rzeczpospolita....

 Ivan Vyhovsky

Ivan Vyhovsky

Ivan Vyhovsky was a hetman of the Ukrainian Cossacks during three years of the Russo-Polish War . He was the successor to the famous hetman and rebel leader Bohdan Khmelnytsky...

.

In 1657 he and Poltava

Poltava

Poltava is a city in located on the Vorskla River in central Ukraine. It is the administrative center of the Poltava Oblast , as well as the surrounding Poltava Raion of the oblast. Poltava's estimated population is 298,652 ....

 polkovnyk Martyn Pushkar

Martyn Pushkar

Martyn Pushkar was a polkovnyk of Poltava's Cossack regiment known for his loyalty to Muscovy. Together with Iakiv Barabash Pushkar led a pro-Muscovy uprising against Ukrainian hetman Ivan Vyhovsky in 1657. After inflicting several defeats on Vyhovsky's Cossacks and his Polish allies, Martyn...

 led a pro-Muscovy revolt against Vyhovsky, who was generally pro-Polish

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 in his policies. The revolt ended in June 1658 near Poltava

Poltava

Poltava is a city in located on the Vorskla River in central Ukraine. It is the administrative center of the Poltava Oblast , as well as the surrounding Poltava Raion of the oblast. Poltava's estimated population is 298,652 ....

, when Vyhovsky and his cossacks defeated the rebellion. Barabash was later captured and executed for his crimes.