Hetman of Zaporizhian Cossacks is a historical term that has multiple meanings.
Petro Konashevych-Sahaidachny was a political and civic leader, who was a Hetman of Ukrainian Cossacks from 1616 to 1622. During his tenure, he transformed Zaporozhian Cossacks from irregular military troops into a regular army and improved relations between the Cossacks, the Orthodox clergy and peasants of Ukraine, which would later contribute to the establishment of a modern Ukrainian national consciousness. A military leader of the Polish–Lithuanian Commonwealth both on land and sea, Sahaidachny is best known for the significant role his troops played in the Battle of Khotyn against the Ottoman Empire in 1621, as well as the Polish Prince Władysław IV Vasa's attempt to usurp the Russian throne in 1618.
Sloboda Ukraine, also known locally as Slobozhanshchyna or Slobozhanshchina, is a historical region in northeastern Ukraine and southwestern Russia. It developed and flourished in the 17th and 18th centuries on the southwestern frontier of the Tsardom of Russia. In 1765, it was converted into the Sloboda Ukraine Governorate.
The Cossack Hetmanate, officially the Zaporozhian Host, is a historical term for the 17th–18th centuries Zaporozhian Cossacks state located in today's central Ukraine. It existed between 1649 and 1764, although its administrative-judicial system persisted until 1781.
Vasily Leontiyevich Kochubey was a statesman of the Cossack Hetmanate of Crimean Tatar descent. His tenure was characterized by Pro-Moscow policies and was cut short by his execution on Hetman Ivan Mazepa's orders. Kochubey's great-grandson was the eminent Imperial Statesman Viktor Kochubey. The family name is also spelled Kotchoubey (French) and Kotschoubey.
Petro Dorofiyovich Doroshenko was a Cossack political and military leader, Hetman of Right-bank Ukraine (1665–1672) and a Russian voivode.
The Ruin is a historical term introduced by the Cossack chronicle writer Samiilo Velychko (1670–1728) for the political situation in Ukrainian history during the second half of the 17th century.
The Battle of Konotop or Battle of Sosnivka was fought between a coalition led by the Hetman of Zaporizhian Cossacks Ivan Vyhovsky and cavalry units of the Russian Tsardom under the command of Semyon Pozharsky and Semyon Lvov, supported by Cossacks of Ivan Bezpaly, on 29 June 1659, near the town of Konotop, Ukraine, during the Russo-Polish War (1654–1667). Vyhovsky's coalition defeated the Russians and their allies and forced the main Russian army to interrupt the siege of Konotop. However, the result of the battle only intensified political tensions in Ukraine and led to Vyhovsky's removal from power several months later.
The Polish–Ottoman War of 1672–1676 was fought by the Polish–Lithuanian Commonwealth and the Ottoman Empire. It ended with the Treaty of Żurawno, by which the Commonwealth ceded control of most of its territories in Central Ukraine to the Ottomans. It was a prelude to the Great Turkish War.
The Polish–Cossack–Tatar War was fought between the Polish–Lithuanian Commonwealth and the Ottoman-allied states of the Cossack Hetmanate and the Crimean Khanate. It occurred in the aftermath of the Russo–Polish War of 1654–1667 and was a prelude to the Ottoman–Polish War of 1672—1676.
The Battle of Podhajce was fought in the town of Podhajce in the Polish–Lithuanian Commonwealth, and the area surrounding it as part of the Polish-Tartar War and the Great Turkish War. The army of the Polish–Lithuanian Commonwealth under John III Sobieski, totaling around 9,000 men, defeated Tatar and Cossack forces under Petro Doroshenko and Adil Giray, which totaled around 35,000 men.
The Lyzohub family was a Ukrainian family of the Cossack Hetmanate. For years many members of the family had high offices in the Ukrainian government.
Samiilo Vasyliovych Velychko — was a Ukrainian Cossack nobleman and chronicler who wrote the first systematic presentation of the history of the Cossack Hetmanate.
Helena Czaplińska, was the second wife of Bohdan Khmelnytsky, Hetman of Zaporizhian Host. She was an influential figure among the Zaporizhian Cossacks and known as "Helen of the Steppe". Initially married to Daniel Czapliński, her influence was seen as a threat as she was suspected to betray her second husband the hetman in favor of her loyalties of her former marriage. She was famously executed for treason by her stepson Tymofiy Khmelnytsky during the absence of her spouse.
Efrosinia Yanenko-Khmelnytsky, was a Ukrainian Hetmana by marriage to Petro Doroshenko, Hetman of Zaporizhian Host. She was an influential figure among the Ukrainian Cossacks. She is known for her alleged life style, as she was said to have several extramarital affairs, and also for a myth regarding her importance for the independence of Ukraine.
The Accession of Kyiv Metropolis to Moscow Patriarchate was the transferance of the Metropolis of Kiev, Galicia and all Rus' in the Eastern Orthodox from the ecclesiastical jurisdiction of the Ecumenical Patriarchate of Constantinople to the Patriarchate of Moscow. The metropolis lay in the territory of the Cossack Hetmanate and of the Polish–Lithuanian Commonwealth.
Nova Sich or Pidpilnenska Sich was the administrative and military center of the Zaporozhian Cossacks in 1734–1775, established after the return of the Zaporozhian Lowland Army to the Russian protectorate as a result of the signing of the Lubny Treaty. The last Zaporozhian Sich was located on a large peninsula, washed by the river Pidpilna.
The liquidation of the autonomy of the Cossack Hetmanate was an administrative reform of the government of the Russian Empire, carried out in 1764-1765 and aimed at eliminating the autonomy of the Cossack Hetmanate. During the 18th century, the Hetmanate gradually lost its political and economic autonomy. In 1764, by order of Empress Catherine II, the hetman's institute was abolished, and a year later the hetmanate was reformed into the Little Russia Governorate.
Pylyp Orlyk's March on the Right-bank Ukraine was the military campaign of the Hetman Pylyp Orlyk on the Right-bank Ukraine in January–March 1711 in order to liberate its territory from Moscow's troops and to restore the hetman's power.
The Battle of Ozerna or Battle of Jezierna was fought on 20–22 November 1655 near Ozerna between the forces of the Polish-Tatar coalition and Ukrainian-Russian troops. The battle ended with a success for the Polish–Lithuanian Commonwealth. As a result of the Polish Lithuanian victory, Bohdan Khmelnytsky was forced to recognize the formal suzerainty of the Polish-Lithuanian Commonwealth over Russia.
Polish–Lithuanian Commonwealth 
Cossack Hetmanate 
Crimean Khanate 
John III Sobieski