Ivan Mazepa

Ivan Mazepa was elected Hetman of the Cossack Hetmanate on the left bank of the Dnieper, with the support of Tsar Peter I. His election marked the beginning of a long rule characterized by modernization and cultural patronage.

Mazepa funded the construction and renovation of St. Michael's Golden-Domed Monastery in Kyiv, a major example of Ukrainian Baroque architecture. This project reflected his role as a patron of Orthodox Christianity and Ukrainian culture.

Mazepa formed a secret alliance with King Charles XII of Sweden against Tsar Peter I during the Great Northern War. This decision aimed to secure Ukrainian independence from Russian control.

Mazepa and Charles XII's forces were decisively defeated by Peter the Great's army at Poltava. The defeat ended the Swedish invasion of Russia and crushed Mazepa's hopes for Ukrainian independence, forcing him to flee to the Ottoman Empire.

After his defeat, the Russian Orthodox Church formally anathematized Mazepa on orders of Peter the Great. This act was used to justify his replacement as Hetman and to suppress any future rebellions in Ukraine.