In July 1649 as Janusz Radziwiłł's deputy commander in chief, he had a major part in defeating the troops of the Zaporozhian Cossacks in the Battle of Loyew.

As Lithuanian Artillery General in 1651, at the Battle of Chernobyl, he succeeded against Cossack troops commanded by colonels Antonov and Adamowicz.

In 1655, he accepted the Union of Kėdainiai of recognition signed between King Charles X Gustav of Sweden and Prince Janusz Radziwiłł, but soon came against this act taking action which aim was to help the Russian side.

While he was in captivity Karl Gustav was urged to attack Russia and a written confirmation of that intention was given to Tsar Alexis of Muscovy after his release.

In November 1656 at Wierzbowo he signed a truce with Frederick William, Elector of Brandenburg, then as royal commissioner in 1657, he led a ceasefire and concluded the Treaty of Bromberg.

At the command of the King wanted to solve the issue of the Fraternal Association, an insurrection created by some long unpaid members of the army claiming the termination of obedience to the King (at the beginning for economic reasons, but later, considering any limitation to Liberum Veto and Vivente Rege proposal as "treason" to Commonwealth constitutional laws).

There he was captured by Konstanty Kotowski, Deputy Speaker of the Fraternal Association, which is thus intended to prevent any agreement that may in effect result in the termination of the insurrection.

After Wincenty Korwin Gosiewski's death, his widow married Prince Janusz Karol Czartoryski, Chamberlain of Kraków.